10:34am: Mlodzinski will begin the season in the Pirates’ rotation, Shelton announced to the team’s beat this morning (via Stumpf).
10:25am: Left-handed reliever Ryan Borucki, who’s in camp with the Pirates on a minor league deal, is expected to make the roster, reports Alex Stumpf of MLB.com. Outfielder DJ Stewart, another Pirates non-roster invitee, is not expected to make the team and has an opt-out clause in his contract today, Stumpf adds. Meanwhile, Noah Hiles of the Pittsburgh Post-Gazette reports that pitching prospect Thomas Harrington is expected to open the season in the minors, though he’s yet to be reassigned to minor league camp and is still slated to pitch today’s game.
Borucki, 31 next week, had a terrific 2023 season in Pittsburgh (2.45 ERA in 40 1/3 innings) but struggled through an injury-wrecked 2024 campaign. He signed a $1.6MM deal to avoid arbitration last winter and started strong but landed on the injured list in April due to a triceps issue. He ended up missing five months and was jumped for seven runs in just 7 2/3 innings upon returning.
This spring, Borucki has looked far more like the 2023 version of himself. He’s tossed 8 2/3 frames and held opponents to one run on five hits and five walks with a dozen punchouts. That 13.9% walk rate is obviously discouraging, but Borucki has typically shown strong command, and the 33.3% strikeout rate he’s notched thus far carries some weight as well.
Borucki will be one of at least three lefties in Derek Shelton’s bullpen. Pittsburgh signed Caleb Ferguson and Tim Mayza to one-year deals worth $3MM and $1.15MM, respectively, in free agency this winter. They’re both set. Southpaw Joey Wentz is still in camp as well. He’s out of minor league options. Wentz pitched well after being acquired from the Tigers late last season and has had a big spring, yielding a pair of runs on nine hits with a 12-to-3 K/BB ratio in 8 2/3 innings.
Stewart, 31, has had a decent showing this spring but seems ticketed to be granted his release. The lefty-swinging former first-rounder (Orioles, 2015) slashed .250/.348/.450 in 46 plate appearances but needed a .391 average on balls in play to get there. Stewart hit only one home run during camp and went down on strikes in 34.8% of his plate appearances.
Stewart had a big year with the Mets as recently as 2023, when he slashed .244/.333/.506 with 11 homers in only 185 trips to the plate. However, that’s an outlier relative to the rest of his career, and he followed it up with a .177/.325/.297 output and just five homers in a very similarly sized sample (194 plate appearances) in 2024.
Assuming he indeed opts out, Stewart can seek new opportunities elsewhere. He’ll be an option for clubs looking for some left-handed pop in the outfield corners or at first base (though his experience there is much, much more limited). Stewart strikes out too often but draws plenty of walks and has shown 25- to 30-homer power. Dating back to 2020, he’s batting .205/.329/.396 with 35 long balls, a 13.5% walk rate and a 28.7% strikeout rate in 812 plate appearances.
Harrington, 23, is one of the Pirates’ top minor league arms. A potential path to a rotation spot opened up last week when Jared Jones’ start was skipped due to an ominous elbow issue. It’s still not clear how things will play out with Jones, who at last update was seeking a second opinion. Harrington’s apparent omission from the roster could be a sign that there was good news with regard to Jones or that the Bucs will simply open the season with four starters and use the early off days to skip the fifth spot in the rotation. Pittsburgh could also give the rotation nod to righty Carmen Mlodzinski, who’s been stretching out this spring and remains in camp. Paul Skenes, Mitch Keller, Andrew Heaney and Bailey Falter are in the top four spots. Top prospect Bubba Chandler was already reassigned to minor league camp a couple weeks back.
The Pirates will need to open a 40-man roster spot for Borucki. He’ll earn the same $1.15MM as Mayza once his contract is formally selected. The Bucs don’t have a clear 60-day IL candidate, barring bad news on Jones. First baseman Spencer Horwitz is on the mend from wrist surgery, but that early-February procedure came with a recovery timetable of six to eight weeks, so there’s a decent chance he won’t be out long enough to require such a lengthy IL stay.