Top of the Order: September Reinforcements Are Coming

Troy Taormina-USA TODAY Sports

Welcome back to Top of the Order, where every Tuesday and Friday I’ll be starting your baseball day with some news, notes, and thoughts about the game we love.

September roster expansion isn’t nearly as supercharged as it was when teams could have up to 40 players in the dugout. Nowadays, clubs are limited to one extra position player and one extra pitcher, so in conjunction with the universal DH and the ghost runner in extra innings, we’ll forever be deprived of crazy box scores like this one.

With rosters more gently inflated than bloated, next month is likely to see more moves than there were back when teams didn’t have to be quite so discerning; those two extra spots are valuable, and teams will surely cycle through guys to fill them. Let’s take a look at which players could make a difference for their club come September.

AL East

The chorus of Yankees fans clamoring for Jasson Domínguez is very, very loud (just spend 30 seconds on Twitter), and those pleas will no doubt continue as long as Alex Verdugo isn’t carrying his weight. Aaron Boone has been reticent to bench either Verdugo or DJ LeMahieu, but there’s no denying that Domínguez has tantalizing potential, even though he’s been more good than great in Triple-A. On the pitching side, the Yankees will have room to add injured pitchers Ian Hamilton and Lou Trivino while only cutting one pitcher currently in the Bronx.

The Orioles are hoping to have injured players like Jordan Westburg and Heston Kjerstad available at some point down the stretch, and top prospect Coby Mayo could also be back up as he looks to put his first-stint struggles behind him. Zach Eflin and Grayson Rodriguez will impact the rotation, albeit not immediately. On the flip side, Trevor Rogers‘ first Triple-A start went horribly; he may not be back up this year.

It was thought that Trevor Story’s shoulder injury would keep him out for the rest of the season, but amazingly, it looks like he’ll be back next month despite undergoing surgery for a fractured glenoid (a bone I definitely knew about before reading his injury report). That should push Ceddanne Rafaela back to center field, where he’s a better defender. Quinn Priester and Richard Fitts have both been rock solid for Worcester and could reinforce a pitching staff that’s been relying on quite a few bullpen games of late.

Of the guys the Rays still have down in Triple-A, infielder Ronny Simon is particularly interesting. He could get a look despite requiring a 40-man spot, though it would be easier to simply call up Jonathan Aranda, Curtis Mead, Austin Shenton, or Osleivis Basabe. Assuming nothing else is ailing him, starter Zack Littell ought to be back from shoulder fatigue, but I wonder if the Rays will take a look at Ian Seymour, who’s pitched very well across two levels.

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With Alek Manoah and Jordan Romano out for the season, Bo Bichette is the one injured Blue Jay who could be back. The Jays couldn’t fit every new guy on the roster after their deadline sell-off, but they can take September as an opportunity to look at starter Jake Bloss and outfielder Jonatan Clase.

AL Central

As their division lead slips away, the Guardians would probably love to make the impactful addition they didn’t make at the trade deadline, but I don’t think Chase DeLauter is coming to save them. They’ll probably just bring back a versatile option like Gabriel Arias or Angel Martínez, though I suppose we can’t rule out a more notable addition like George Valera. Alex Cobb should be back from a cracked fingernail to help out the pitching staff.

The Royals’ reinforcements should largely come from the injured list, with Hunter Renfroe, Hunter Harvey, and Michael Lorenzen all dealing with short-term ailments. Evan Sisk has been otherworldly out of the Triple-A bullpen and might be added at some point if Kansas City wants to bolster a relief corps anchored by Lucas Erceg.

The Twins have an even more impressive injured list than the Royals and are surely hoping that Carlos Correa and Byron Buxton will help out the offense. That could lead to a tough decision, like sending Austin Martin back to the minors. With the rotation in decent shape, Louie Varland could be brought up to really air it out in relief, as he’s done successfully in the past.

The Tigers have slow-played Casey Mize’s rehab from a hamstring strain, but he’ll finally make his return on Friday, giving Detroit another actual starter to break up all the bullpen games. Still, having another reliever when rosters expand on Sunday will be helpful, as will having another position player spot to evaluate someone like Justyn-Henry Malloy, who had a 99 wRC+ in his first taste of the majors.

Over the next month, the White Sox should really stop toying with up-and-down guys like Oscar Colás and Bryan Ramos, and give them plenty of plate appearances to see what they have. Of course, whether Chicago actually takes the opportunity to play those guys over veterans like Nicky Lopez and Gavin Sheets — who simply won’t be a part of the next good Sox team, whenever the heck that is — is up for debate. Nick Nastrini and Ky Bush both pitched pretty badly in their first handful of big leauge starts but, again, it’s evaluation time! No need to see what you’ve got in a known quantity like Chris Flexen.

AL West

The Astros appear to be content cycling through guys to replace Kyle Tucker, with Ben Gamel and Jason Heyward the latest veteran additions, so I don’t think Pedro León will come back up after mostly being utilized off the bench. If Chas McCormick uses his time in Triple-A to iron out the issues that have plagued him all season, he could reemerge as a key bench bat against lefties at the very least. On the pitching side, the Astros have been rolling with a six-man rotation, so that extra bullpen spot will be helpful.

New skipper Dan Wilson might just have the Mariners back on track, with back-to-back series wins to start his tenure. The offense has actually been clicking (by Seattle’s standards) for those six games, so they’ll probably just add a complementary guy like Ryan Bliss. The starting staff is obviously all set, but the team lacks a true long reliever and could add an innings-eater like Jhonathan Diaz or Emerson Hancock to cover some low-leverage frames.

It doesn’t look like the Rangers will be facilitating a mass exodus of rental players, so there likely won’t be anything huge for their roster. Max Scherzer’s availability is a hard “maybe,” but that doesn’t mean it’s Kumar Rocker time, either, as excellent as his first Triple-A start was. Their additions will likely be players who’ve already been up this year, like Justin Foscue, Jack Leiter, and Gerson Garabito.

I really, really want the A’s to bring Ryan Noda back up; his three true outcomes style makes him an incredibly fun player. As difficult as he’d be to fit on the roster, I’m a Nodahead, so make it happen! If not him, Hoy Park had a great spring training and continues to perform well in Triple-A. Like the Astros, the A’s have a six-man rotation going, so the extra bullpen arm will be useful.

Frankly, I thought Christian Moore would be up by now, following in Nolan Schanuel’s footsteps as an Angels top draft pick having his minor league timeline supercharged. There’s no better time than Sunday to bring him up — this is a team that could really, really, really use some excitement. It’s also time to bring Reid Detmers back up to help the rotation; he’s finally hit his stride at Triple-A and there’s no good argument for keeping him in Salt Lake City.

NL East

The Phillies have about as solid a core as it gets, and they don’t really have top prospects knocking on the door anyway. A lefty bench bat like Kody Clemens would be useful, as would another lefty reliever like Tyler Gilbert, who could help fill in for José Alvarado while he’s on the restricted list due to a personal matter.

The only reinforcement the Braves could be getting is Ozzie Albies, and even so, that would be at the tail end of the month if his wrist heals quickly enough. In the meantime, they could add speed in Eli White or a lefty masher in Harold Ramírez. AJ Smith-Shawver could return as a weapon out of the bullpen, or they could go the more traditional route with the hard-throwing Daysbel Hernández.

The pitching additions will be straightforward for the Mets, who should have Paul Blackburn off the injured list shortly after rosters expand, allowing for Tylor Megill (who’s taking Blackburn’s rotation spot for now) to slide to the bullpen. On the offensive side of things, only four of the team’s 13 hitters can bat from the left side; DJ Stewart would help balance things.

The Nationals are playing some good ball of late, but it’s not as if they’re suddenly making a playoff push. They could make it interesting by promoting Brady House or Darren Baker, though either move would be pretty aggressive considering their middling Triple-A production. Brad Lord isn’t a hard thrower, but he is a strike thrower and their best performing arm down in Rochester.

September will be just like August for the Marlins: an exercise in seeing what they’ve got for the future. Deyvison De Los Santos, Javier Sanoja, Troy Johnston, and Agustin Ramirez are all hitting well down in Triple-A; any of the four would certainly make things interesting for a bad Miami club. The team doesn’t have much in the way of pitching prospects, but Adam Mazur was acquired from the Padres at the deadline and could get a look.

NL Central

The Brewers’ plug-and-play roster will get even more plugs on Sunday, with Tyler Black and Owen Miller both known commodities who can play many positions. Nick Mears is expected back soon to help the bullpen, but he won’t be eligible to return on Sunday. Elvis Peguero has been a solid enough arm for Milwaukee the last two years and is the likeliest to make a return.

Few teams are clicking as well as the Cubs have lately, but it probably won’t be quite enough for them to make the playoffs; there just aren’t enough games left. James Triantos, Matt Shaw, and Kevin Alcántara were just promoted to Triple-A, so they’re probably off the table, as exciting as further promotions would be. With starting lineup spots pretty well spoken for, they’ll probably go with a less sexy add like Miles Mastrobuoni. The same could hold true for the pitching staff, with journeyman Trey Wingenter a strong possibility.

Nolan Gorman and Jordan Walker seem to have issues that will require more time to iron out than just a few weeks, so I don’t think they’ll be back in St. Louis so quickly. That said, the Cardinals could still bring up an exciting youngster in César Prieto or Thomas Saggese. Ryan Loutos could be back to help the bullpen unless they want to get really aggressive by promoting Quinn Mathews or bringing up Michael McGreevy again — not likely with the playoff odds being what they are.

Rhett Lowder is plenty exciting for the Reds, as he’s set to make his major league debut on Friday; the pitching addition Sunday is likely to be someone who can provide length out of a bullpen that’s been mighty busy lately. Nobody’s hitting extraordinarily well down in Louisville, so it could just be a bench bat coming up until Jake Fraley or Jeimer Candelario comes off the IL.

Last place with zero percent playoff odds isn’t where the Pirates were hoping to be, but it’s where they are. Colin Holderman is the one IL’d player expected back at some point; he’ll aid a bullpen that got hammered by the Cubs for three games. Now that Oneil Cruz is in center field full-time, there could be room on the infield for Nick Yorke or Liover Peguero.

NL West

Perhaps more than any other team in the league, the Dodgers are dealing with known quantities. The hope is that Tyler Glasnow comes back soon as the pitching addition, and Yoshinobu Yamamoto should be close behind. As far as hitters go, they’ll probably just bring James Outman or Andy Pages back up to help the outfield.

The Diamondbacks are surging, and they’re going to get even scarier when Ketel Marte, Christian Walker, and Gabriel Moreno are back to help the offense; the additional spot allows the Snakes to only have to send two players down when those guys are back, which can create even more favorable matchups. The pitching staff is pretty well set, but Tommy Henry and Yilber Diaz would both still have value as long relievers or spot starters.

As if the Padres bullpen couldn’t get any better, they’ll probably welcome Wandy Peralta back to it at some point, with knuckleballer Matt Waldron lurking as well. If Fernando Tatis Jr. doesn’t make it back, San Diego could still inject some speed with José Azocar (a far cry from Tatis, I know).

There could be more than two moves for the Giants if any of the waived Tyler Rogers, Thairo Estrada, or Tyler Matzek end up elsewhere, but even if those guys stay put, the team will probably move towards evaluating youngsters. Offensive options include Marco Luciano and Luis Matos, with Mason Black and Reggie Crawford among the pitching options.

I wish the Rockies would do something exciting just to make watching them more fun, but alas, I think they’ll just play the old hits. Sean Bouchard, Hunter Goodman, Greg Jones, Peter Lambert, Tanner Gordon, and Ty Blach have all been up this season and could be back.





Jon Becker manages RosterResource's team payroll pages, assists with all other aspects of RosterResource, and also dabbles in creating new features as a Junior Developer. Follow him at your own peril: @jonbecker_ on Twitter and @becker.fangraphs.com on Bluesky.

28 Comments
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Newest Most Voted
sadtromboneMember since 2020
2 years ago

Moving Rafaela back to CF sounds great in theory but against right handed pitching you really need Duran, Abreu, and O’Neill and Refsnyder is a better hitter than Rafaela.

The Red Sox are in a weird place. They definitely need a real shortstop out there (which is not Rafaela) but there’s not a good place for him to play in the outfield because the other players are so good. And next year Roman Anthony and Kristian Campbell will be ready too. There is really no world where any of these other guys should sit in favor of Rafaela. But he is still a useful player because of the CF defense.

In the old days you could count on some team getting suckered in by his counting stats, trading actual prospects or maybe even a major leaguer for him. Don’t know if there is a team that would do that now.

PC1970Member since 2024
2 years ago
Reply to  sadtrombone

Chris Getz has entered the chat.

Seriously, I could see 3 teams getting suckered- Colorado, LAA or White Sox..& Colorado & LAA don’t need a CF or a SS.

sadtromboneMember since 2020
2 years ago
Reply to  PC1970

Brayan Bello and Cedanne Rafaela for Garrett Crochet and every news outlet will be calling up Berto for a reaction.

EonADSMember since 2024
2 years ago
Reply to  sadtrombone

That’s not a bad trade in terms of value, but it’s everything the White Sox don’t need. Bello has real upside on a cheap deal and so does Rafaela. But the White Sox aren’t contending again until the mid 2030s.

mstacey9
2 years ago
Reply to  sadtrombone

Arguing for Rob Refsnyder over a 23 year old top prospect trying to figure it out is as insane as it gets on fangraphs.

Cool Lester SmoothMember since 2020
2 years ago

Are AAA stats normalized for the change from robo-umps to a challenge system at the end of June?

Because a .360 wOBA used to be pretty damn good for the International League.

Mitchell MooreMember since 2020
2 years ago

The IL is so hitter friendly a .360 wOBA translates to only 110 wRC+. The PCL is even more so – a .360 wOBA = 102 wRC.

Cool Lester SmoothMember since 2020
2 years ago
Reply to  Mitchell Moore

That’s with the RoboUmp inflation from the first half, though – it used to be more in the 115-120 wRC+ range.

its0in0the0cards
2 years ago

For the Cardinals, Jordan Walker may be called up again if a team claims Tommy Pham off waivers. Or, if they give up on their 1% playoff hopes, an unheralded prospect like Matt Koperniak might be interesting.

sadtromboneMember since 2020
2 years ago

This is going to be the second time that the Cardinals gave up on Pham. I know they have no chance of making the playoffs this time and he’s a rental but you would think the Cardinals would at least consider not making such an abrupt u-turn.

vslykeMember since 2020
2 years ago
Reply to  sadtrombone

Pham wanted a chance to go to the postseason so the Cardinals are actually doing him a favor

sadtromboneMember since 2020
2 years ago
Reply to  vslyke

Interesting. Looks like no one claimed him. That’s ominous.

Lanidrac
2 years ago
Reply to  sadtrombone

No, the Royals claimed him.

Lanidrac
2 years ago

Walker has already been called back up to replace Pham. He’s not a September roster addition. I’m still thinking it will Gorman coming back up.

David Klein
2 years ago

Sounds like Acuna will be called up for the Mets as Mendoza mentioned they’re looking for versatility and a guy with good speed and Acuna can play three positions and has 30 plus steaks this year. He’s also on the 40 man roster.

David Klein
2 years ago
Reply to  David Klein

Steals I mean I dunno how many players on the team eat steak so that may be too much.

Pirates HurdlesMember since 2020
2 years ago
Reply to  David Klein

“steaks” is synonymous with RBI, ie rib-eye, so most players love them

Tim L.Member since 2025
2 years ago

I wonder if the Brewers bring up Misiorowski sooner rather than later. Looks like he’s been being prepped in AAA as a reliever for the stretch run. And he’s been literally unhittable in relief – as in zero hits and zero walks in 5 appearances. I’m not a math guy, but that’s a pretty good WHIP.

Last edited 2 years ago by Tim L.
Tim L.Member since 2025
2 years ago
Reply to  Jon Becker

Yoho could be an option too.

Lanidrac
2 years ago

I’m sure the Cardinals’ pitching spot will go to Lynn or Matz, who are both about to return from the injured list. How the Cardinals then manage the starting rotation then remains to be seen. Personally, I’d put Lynn back in the rotation and demote Mikolas to the bullpen, but I don’t know if the Cardinals are willing to do that with Mikolas.

As for the position player, I could very well see them calling Gorman back up. He’d at least get more playing time on the big club than in AAA with the season ending soon, the main reason for expanded September rosters in the first place.

Barney Coolio
2 years ago

I wish more players could be called up in September. I do not see why the limit has been reduced to 2.

I remember one season Chan Ho Park was injured, but SD kept him on the roster in September, strictly as a pinch hitting bunter. That was intriguing. They never used him at all that month though.

The Duke
2 years ago
Reply to  Barney Coolio

Yeah, they went from a free-for-all to nothing. There must be a sensible middle ground like 4-5 that everyone could agree to.

Lanidrac
2 years ago
Reply to  Barney Coolio

Yeah, MLB seems to have forgotten that the main purpose of September roster additions is to provide extra playing time for the AAA prospects and AAAA players in AAA after the AAA season ends. Teams are very limited in doing that with just two extra spots, especially when one or both of them is often used for a player or players returning from the IL.

Last edited 2 years ago by Lanidrac
dbannonMember since 2022
2 years ago

Wrong twin- Taylor Rogers was the one placed on waivers.

Willians Astu-stu-studilloMember since 2020
2 years ago

I’m hoping that Dominguez will take away Verdugo’s playing time, but the Yankees have been incredibly unwilling to reduce his role in the slightest, even when there have been better options.

synco
2 years ago

Count me as another who doesn’t understand why Verdugo has been a regular (and a block for Dominguez) all year, and the commentariat has accepted it as a given. Verdugo has been worth 0.6 WAR this year in 556 PAs. He’s on a 1-year deal and is a UFA next year. It doesn’t make any sense.

At this point it makes some sense to manipulate Dominguez’s service time to keep him under 130 MLB PAs, but we’re only in this scenario because he hurt himself putting up worthless appearances in the minors this summer. He should have been up and in Verdugo’s spot a while ago.

Last edited 2 years ago by synco
TheGrandslamwichMember since 2020
2 years ago

I’m late to the comments. The rule of 1 position player and one pitcher makes me wonder how the league would handle a 2 way player? Would the team have to declare a position?