O’s Snag Fujinami From A’s in Bid To Create Their Next Lights-Out Reliever

I am a big fan of trading for reinforcements well ahead of the trade deadline. If you can add a piece that will make even a small difference, then do it early if the deal makes sense. That is exactly what the Orioles have done in acquiring Shintaro Fujinami from the A’s, adding to what was already a league-best bullpen led by Félix Bautista and Yennier Cano. In return, Baltimore sent 26-year-old prospect Easton Lucas to Oakland.

Before jumping into Fujinami’s profile and potential, let’s learn a little about Lucas. He initially came to Baltimore’s system from Miami in a trade for veteran infielder Jonathan Villar in December 2019. Since 2021, he has worked his way from High-A to Triple-A as a reliever, peaking at 56.2 innings last season. But after looking the best he has in his career with a 2.66 FIP and 38.7 K% to start the year in Double-A, he’s struggled after stepping up to Triple-A, with a 7.31 FIP and 4.61 ERA in 13 innings.

Even with these recent struggles, there is reason to believe Lucas can be a legitimate middle reliever in the big leagues. Per Eric Longenhagen, his average fastball velocity has jumped significantly, from 90.7 mph to 94.5. He also utilizes two slow breaking balls: a slider that was in the high-70s, and a curve that was in the mid-70s. But like his fastball, those pitches have seen a velocity jump as well; the curve has turned into a low-80s slider, and the old slider has tightened up to become a high-80s cutter. That is essentially a 10-tick bump in both breaking balls. With these changes, Lucas has also faded his changeup usage. Long story short, he is now a four-seamer/cutter/slider guy with a significant stuff boost, giving him more of a shot to be a big leaguer.

Let’s pivot back to Baltimore’s side of things. On the surface, Fujinami has been one of the worst pitchers in baseball this season. He began the year as a starter and allowed 24 earned runs in under 15 innings, walking virtually everyone he faced. He has been much better since moving to the bullpen, posting a 3.90 FIP in 34.1 innings, but much of that performance is very recent. In May and June, he still had a FIP over 4.00 with a BB% north of 10.

After back-to-back rough performances at the end of June against the Blue Jays and Yankees, Fujinami changed his pitch mix, and it seems as if he has settled in as a four-seamer/splitter pitcher. He used his cutter a few times in a recent appearance, but it’s clear that his plan is to use a two-pitch mix. How has that worked out? Let’s look at the four-seamer swinging-strike leaders in July:

Obviously the sample size here isn’t anything significant, but this bump deserves attention. Despite consistent four-seamer usage — between the high-50s and low-60s — Fujinami’s four-seamer swinging-strike rate hadn’t broken 26% in any month. The pitch wasn’t effective, but it has become a weapon in the last few weeks.

As I already mentioned, Fujinami has used a two-pitch mix of late, but how have the fastball and splitter adapted since his recent surge? (I didn’t include his velocity increase between these two time periods because that is largely due to him no longer starting; his fastball jumped two ticks and his splitter jumped one as a reliever.)

At 93.3 mph, nobody throws a splitter harder than Fujinami other than Jhoan Duran. On top of that, you can see some concrete changes in the pitch’s shape to make it play better with the four-seamer. Most interestingly, the 1:47 tilt on the pitch has moved closer to the four-seamer’s movement. That complicates things for hitters: if Fujinami is throwing both pitches out of similar release points with indistinguishable tilt differences, hitters are going to have trouble either getting their barrel on the splitter or catching up to the heater. The high velocity combination doesn’t give you much wiggle room to figure out where each pitch is headed.

Let’s see what this looks like in practice. Here is an at-bat from last week against Alex Kirilloff:

Pitch 1 (0-0, four-seamer)

Pitch 2 (0-1, splitter)

Pitch 3 (0-2, splitter)

Pitch 4 (0-2, four-seamer)

From Fujinami’s perspective, it doesn’t get any better than this. Kirilloff got his best pitch to hit in the 0–0 count and passed it up. After that, he had no chance. The 0–1 splitter is a nice example of how even a little bit of difference in movement and location can affect a hitter’s swing. The vertical orientation of the splitter was enough for Kirilloff to pull off and chop a foul ball. On the following pitch, Fujinami showed how he can induce a little more horizontal break than a hitter would expect from his release point. It’s not overwhelming, but it’s enough to fool Kirilloff and force an emergency hack. Then, on the final pitch, he blew Kirilloff away with triple digits above the zone. This is perfect execution and sequencing, and it’s exactly what the Orioles will be looking for.

Baltimore has developed a great reputation when it comes to helping relievers get the most out of their stuff and body. If anybody is equipped to help a high-octane reliever with a four-seamer/splitter combination, it’s the Orioles. I wouldn’t be surprised if Fujinami ends up making a slight tweak or two upon his arrival, but I’m confident that would be focused on propping up the two-pitch mix that he has effectively established in the last couple of weeks.