Let’s Check In On the Padres’ Bullpen
You probably haven’t thought about the Padres’ bullpen in a while, and you’d be forgiven for that. Most of the high-profile additions they’ve made in the last several months have come in the starting rotation. The other big moves, such as trading for Austin Nola and signing Ha-seong Kim, have been upgrades to the lineup. Oh, and there’s that whole record-setting contract they just gave to their 22-year-old superstar.
All of that has overshadowed the fact that the turnover in San Diego’s relief staff lately has been extreme. Seven of the team’s top eight projected relievers on our Depth Charts page were not on the roster at the end of the 2019 season. Like the rest of the Padres, though, that turnover has resulted in a unit that now looks like one of the best in baseball. It’s worth getting caught up, then, on who the newest arrivals are, who has recently departed, and where that leaves the group as a whole.
San Diego did a lot of its heavy lifting last offseason and at the trade deadline, but the team signed two notable big leaguers in the last few weeks. One was Mark Melancon, the 35-year-old veteran who will join the eighth team of his soon-to-be 13-year big league career. Melancon became famous at the back of Pittsburgh’s bullpen in the mid-2010s when his cutter made him one of the game’s most dominant closers for a few years, bringing about the obligatory comparisons to Hall of Famer Mariano Rivera. From 2013 to ’16, he threw 290 innings with a 1.80 ERA and 2.25 FIP, all while throwing his cutter about 67% of the time. After that, he landed a big contract with the Giants, who traded him to the Braves at the deadline in 2019. Melancon wasn’t as good over the past four seasons as the four previous, but he still managed to pitch effectively.
| Years | IP | K/9 | BB/9 | HR/9 | GB% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|
| 2013-16 | 290 | 8.32 | 1.40 | 0.31 | 57.4% | 1.80 | 2.25 | 7.7 |
| 2017-20 | 159 | 8.04 | 2.55 | 0.57 | 57.2% | 3.57 | 3.18 | 2.3 |
The second row is more representative of a good seventh-inning guy than a lockdown closer, but if you’re still missing as many bats and getting as many ground balls in your early-to-mid-30s as you did in your mid-to-late 20s, you’re accomplishing something. Melancon’s strikeout numbers did take a hit in 2020, dropping all the way from 9.9 per nine the previous season to 5.56, but I’m willing to give him the benefit of the doubt because of the shortened season limiting him to just 22.2 innings. Last year featured his highest cutter velocity since 2014 and spin rates on his curveball that were right in line with previous years, so the stuff still seems fine. In fact, both his cutter and his curveball — which combined for 94% of his total offerings — resulted in an xwOBA under .300.

This isn’t to say Melancon arrives without risk. He’ll turn 36 before Opening Day, and while he’s been healthy the last two seasons, he did miss significant time in 2017 and ’18 with muscle strains. He’s the kind of pitcher for whom a sudden breakdown could be looming any given year, and the modest $3 million commitment — in spite of his track record — is representative of that.
The other reliever signed by San Diego, meanwhile, hopes to have many more years of big league pitching ahead. Keone Kela, a 27-year-old right-hander, agreed to a one-year, $1.2-million deal for 2021, after forearm discomfort limited him to just four innings in his final year of team control with Pittsburgh. Prior to that, he’d been a late-inning stalwart since debuting for Texas back in 2015 at the age of 21.
| Year | IP | K/9 | BB/9 | HR/9 | GB% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|
| 2015 | 60.1 | 10.14 | 2.69 | 0.60 | 50.6% | 2.39 | 2.64 | 1.5 |
| 2016 | 34.0 | 11.91 | 4.50 | 1.59 | 43.9% | 6.09 | 4.56 | 0.0 |
| 2017 | 38.2 | 11.87 | 3.96 | 0.93 | 30.5% | 2.79 | 3.26 | 0.8 |
| 2018 | 52.0 | 11.42 | 3.29 | 0.87 | 37.3% | 3.29 | 2.97 | 1.4 |
| 2019 | 29.2 | 10.01 | 3.34 | 0.91 | 37.8% | 2.12 | 3.52 | 0.4 |
Save for 2016, Kela has been excellent for his whole career. Relying primarily upon an upper-90s fastball and a low-80s curveball, he’s managed to get whiffs at an incredibly consistent rate. Seriously, look how straight this line is:

Relievers with such consistently strong performance who enter the market at 27 years old don’t come around very often, so why did Kela settle for such a meager contract? For starters, his injury issues last year were nothing new. He was out for an extended portion of 2019 due to inflammation in his throwing elbow and also missed significant time during his Rangers tenure with elbow and shoulder injuries. Those ailments have added up: He ranks just 100th among all big league relievers in innings pitched since 2015, the year he debuted.
Other non-performance-related reasons could have chased off bidders as well. I’m usually one of the last people to concern-troll about the “clubhouse presence” of any given player, considering how muddled (not to mention often discriminatory) those kinds of discussions tend to be. In the case of Kela, though, it is worth noting that he was suspended by the Pirates in 2019 for getting into an altercation with a team employee. That wasn’t the only suspension he had to serve that season, nor was it the first time he’d been temporarily removed from a big league team due to confrontations with other members of the organization. Still, the talent he has shown is undeniable. If he stays healthy, the Padres could have a stud on their hands for cheap.
San Diego hopes the two free agents added to the bullpen this winter will offset two major departures from the same group. Back in January, the Padres watched Kirby Yates — the team’s best reliever in 2019 — sign with the Blue Jays. Just last week, they lost another key pitcher in Trevor Rosenthal, who joined Oakland. That leaves San Diego with the following projected group heading into 2021, which our Depth Charts ranks as the fourth-best bullpen in baseball:
| Name | IP | K/9 | BB/9 | HR/9 | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|
| Drew Pomeranz | 62 | 11.8 | 4.3 | 1.1 | 3.54 | 3.69 | 1.1 |
| Emilio Pagán | 61 | 10.6 | 2.8 | 1.4 | 3.75 | 3.88 | 0.8 |
| Pierce Johnson | 58 | 10.5 | 3.9 | 1.1 | 3.77 | 3.81 | 0.7 |
| Mark Melancon | 57 | 7.8 | 2.8 | 1.0 | 3.82 | 3.98 | 0.4 |
| Matt Strahm | 53 | 9.2 | 2.7 | 1.3 | 3.94 | 4.13 | 0.3 |
| Austin Adams | 52 | 13.1 | 4.9 | 0.9 | 3.16 | 3.37 | 0.5 |
| Tim Hill | 44 | 8.7 | 3.2 | 0.8 | 3.57 | 3.76 | 0.1 |
| Keone Kela | 42 | 11.7 | 3.5 | 1.1 | 3.36 | 3.47 | 0.2 |
| Javy Guerra | 32 | 8.8 | 3.6 | 1.1 | 4.11 | 4.11 | 0.0 |
| Dan Altavilla | 24 | 10.8 | 5.1 | 1.2 | 4.15 | 4.33 | 0.0 |
It’s a lot of good arms, and only Strahm and Guerra were in the organization at the end of the 2019 season. Pomeranz was the big free-agent addition a year ago, and he dominated in 2020, pitching in a third of the team’s games and holding a 1.45 ERA and 2.39 FIP. Johnson was signed before last season as well, coming in with less than 50 innings of big league experience, and turned in a 2.70 ERA and 3.14 FIP in 20 innings. Hill and Pagán were acquired via trade before the 2020 season, and Adams and Altavilla came over last August at the deadline. San Diego has acquired more good big league relievers than it can keep on the roster at once, and we haven’t even gotten to the pitchers who aren’t on this list.
You don’t see Chris Paddack or MacKenzie Gore on that table, even though one of them seems bound to pitch out of the bullpen at some point in the season while the other assumes the fifth spot in the rotation. Adrian Morejon, the talented 21-year-old lefty who was the team’s No. 6 prospect entering 2020, isn’t on this list, even though his K-BB% of 26.6% in 19.1 innings last year suggests he’s ready to stick in the majors quite soon. Craig Stammen isn’t here either, though he’s still in the organization and led the team in relief appearances last season while carrying a 3.36 FIP. Other talented young arms such as Jose Castillo, Michel Baez or Ryan Weathers? None of them are projected to throw 20 innings in this bullpen.
I don’t mean to paint these projections as something that should be taken as gospel. The objective here is to point out the preposterous number of options the Padres have for the coming season. Injuries will happen, and at least one or two guys will fail to live up to expectations. But with so many contingency plans in place, it’s hard to imagine a world where a single pitcher’s misfortune hurts the unit as a whole. San Diego didn’t need to add more guaranteed contracts to this bullpen, but it did anyway, and I wouldn’t be surprised to see the team do it again. With the bullpen, as with other parts of the roster, the excess seems to be the point.
Tony is a contributor for FanGraphs. He began writing for Red Reporter in 2016, and has also covered prep sports for the Times West Virginian and college sports for Ohio University's The Post. He can be found on Twitter at @_TonyWolfe_.
Braves fan here, I know the strikeout rate is concerning but I can confirm that the stuff is still crisp. He can bump that cutter up to 94 and it can be pretty nasty. And he does a great job of getting weak contact, the Statcast numbers still look solid.
I love the approach of just accumulating talent in absurd abundance. As noted, injuries are going to happen frequently this season as players re-acclimate to a regular schedule. Why not stock up on a bunch of low-risk high-reward candidates in the likely scenario where a handful of relievers are on the IL early. It’s nice to see a team try to win. I look forward to watching the Padres this season
This is exactly what I was hoping the Jays would do with their rotation but they seem to prefer (as usual) the “pray everything breaks right” strategy.
It’s definitely the right approach, but I find it strange that some players are cool with it. We’ve seen guys accept less playing time to be on the Dodgers or Pads, etc. Admittedly they’re rarely giving up money to do that, but you’d think most guys would value playing every day over winning. It’s interesting.
Definitely interesting. I think there’s just such a strong appeal to be with a team who’s an immediate World Series favorite. Players see the writing on the wall throughout the league and seem to be willing to sacrifice some playing time to try to be a part of an organization that is an extreme(ly pleasant) outlier.
A Mark Melancon could go probably elsewhere and get more guaranteed innings. But, if even a Boston or Chicago won’t bother to keep you around, why not just skip a step and go to the team that probably would acquire you at the Deadline anyway?
Kela and Preller and Tingler all know each other from the Rangers. That familiarity may have had something to do with him landing there. Preller and Tingler already knowing Kela may have made them more comfortable with the clubhouse “risk” he represents than other teams.
I can tell you right now that there is no chance Gore throws a pitch out of the pen. And while maybe Paddack will be a pen option in postseason he won’t be one before hand. The depth charts don’t even include Jose Castillo who is supposedly very healthy and ready to go, but it’s possible he starts in AAA as he has options. He’s a stud when healthy. Guerra/Altavila look on the outside looking in as they don’t have options and are well behind other options. I expect them both to be traded before the season for not much in return.
Morejon is the 1 true wildcard, it sounds like there is a good chance he starts in the pen but in multi inning role as they want him stretched out to start if necessary. The other options are a 6 man rotation or him being a starter in AAA
Small sample size but Altavilla pitched well for San Diego after being acquired. He’ll likely have a spot barring injury or a bad spring.
Who is getting a spot above?
Morejon
Castillo
Johnson
Pagan
Stammen
Melancon
Pomeranz
Adams
Hill
? Hill and Castillo have options so I guess maybe those guys? But then you just have 1 lefty out of the pen
Btw strahm looks to be starting on IL but he’s worse than him too
Strahm will be on the IL as you note. Morejon will likely be starting in AAA. Castillo has options and likely will need to shake some rust. Altavilla might not be on the Padres come June but I would guess he’ll be on the OD roster.
I don’t know the latest talk out of camp seems to be morejon is likely making the team. Castillo shouldn’t be optioned imo, he has the whole offseason to get ready and looks healthy, why waste a injury risk in AAA when he’s one of your best pen options?
The lack of options for most of the relievers will keep SD from running a taxi squad at the end of the pen like LA has done the last few years, limiting the flexibility to load up on LHPs for the Dodgers series or manage workloads across the staff.
That said, Guerra and Altavilla have tantalizing upside and control, which makes cutting them unattractive. Trading them is hard because they won’t get equal talent and a team like the Padres should be hoarding players who can make a difference in a playoff game, not just those who soak up innings in a June blowout. Conversely, Stammen is owed $4m and has led MLB in multi inning appearances over the past few years, so he’s a valuable cog in a 2021 pen.
Assuming close to full health to start the season, I see the Padres getting creative with the IL. Six spots are spoken for (Pomeranz, Pagan, Melancon, Johnson, Adams, and Stammen), leaving three spots. They can use two on Guerra and Altavilla and one as a rotating door for LHPs (Hill, Castillo and Morejon). Strahm starts on the IL and I wouldn’t be surprised if they take it slowly with Kela given his injury history and the roster crunch. Eventually performance or injuries will make it easier to sort it all out without shedding talent
I think Stammen will be gone, he seemed to decline some last year, and in 2019 gave up a ton of homers. He’s 37, and if they can trade him and save $4 million I think they will do it.
I think that’s the rub. Padres signed melancon and Kela for $4m combined so no one is taking Stammen’s contract. Stammen is an innings eater with sub 4 FIPs in each of the past 4 seasons, so he’s not exactly deadweight even if his contract is underwater. From a non-analytical point of view, there’s a reason Stammen was chosen to start game 3 vs St Louis so I don’t the see Padres eating the contract and cutting a clubhouse leader just to make room for a 28 year old with control problems (Altavilla) or a converted SS who hasn’t yet learned to pitch (Guerra).