Brewers Promote Jacob Misiorowski

June 12: The Brewers announced today that they’ve formally selected Misiorowski’s contract. He’ll start tonight’s game. Righty Easton McGee was optioned to Triple-A in his place, while Woodruff was indeed moved to the 60-day IL to clear a 40-man spot.

June 10: The Brewers are calling up pitching prospect Jacob Misiorowski, reports Jeff Passan of ESPN. The righty will start Thursday’s game against the Cardinals. Milwaukee will need to make room for him on the active and 40-man rosters. The latter should be as easy as Brandon Woodruff being transferred to the 60-day injured list since he’s already been out longer than that.

Misiorowski, 23, is one of the top prospects in baseball. The Brewers selected him with a second-round pick in the 2022 draft and signed him with a $2.35MM bonus, more than double the $1.1MM slot value for that pick.

Since then, he has been climbing the ladder with very exciting results. His fastball sits in the high-90s and can get into triple digits. He also has a curveball, slider and a lesser-used changeup. Those pitches have helped him strike out a lot of opponents though control is clearly still a work in progress.

He got a brief professional debut in 2022, making just two Single-A appearances. In 2023, he logged 71 1/3 innings while climbing as high as Double-A. He posted a 3.41 earned run average while punching out 35% of hitters, but he also gave out free passes at a high rate of 13.4%. Last year, he split his time between Double-A and Triple-A, logging 97 1/3 innings. The Brewers moved him to a relief role late in the year as a way of monitoring his workload. He had a 3.33 ERA, 30.5% strikeout rate and 14.4% walk rate.

The numbers have been similar this year. He has logged 63 1/3 Triple-A innings thus far with a 2.13 ERA and 31.6% strikeout rate. His 12.3% walk rate is an improvement for him but still about four ticks above typical major league average, which is 8% for starters this year.

Misiorowski still has some things to work on, particularly the control and the workload, but the arsenal is clearly exciting. Baseball America currently lists him as the #21 prospect in the league. FanGraphs has him at #27. ESPN’s most recent update put him at #30. Baseball Prospectus had him at #65 in the offseason. MLB Pipeline currently has him further down at #68, with a bit more concern that the control issues will eventually push him to the bullpen. Keith of Law of The Athletic had similar concerns when giving Misiorowski the #87 slot coming into the year.

Time will tell if Misiorowski is destined for the bullpen or can stick in the rotation but it’s understandable that the Brewers will keep trying the starting path until they get some clarity. There’s simply far more value in an excellent starting pitcher compared to an excellent reliever. Even if it doesn’t work out, the bullpen path will still be available as a fallback. Even Law, the most bearish of those prospect evaluators, believes Misiorowski has a future as an elite closer.

For now, the Brewers will see if Misiorowski can evolve into a big league starter. The rotation has been constantly shifting for Milwaukee this year, mostly due to injuries. Woodruff was expected to start the season on the injured list, recovering from last year’s shoulder surgery, but his rehab has also hit a few snags. He battled some ankle tendinitis and also suffered an elbow contusion from a comebacker and is still likely a few weeks away. Robert Gasser had Tommy John surgery last summer and is another guy the club knew would be on the IL to start this year.

In addition to Woodruff and Gasser, several other pitchers have missed some time. Nestor Cortes is still on the shelf, having suffered a flexor strain back in April. Tobias Myers missed time due to an oblique strain. Aaron Civale had a hamstring strain, Jose Quintana a shoulder impingement and DL Hall a lat strain.

Around all those transactions, the club has been trying to find various solutions. Quintana was a spring signing. The Brewers traded for Quinn Priester a week into April. Several minor leaguers have been called up. As the club has been spinning those plates, 12 different pitchers have started for the team already this year. Some of those have been openers, but it’s clearly been a bit of a whirlwind.

As of this moment, the rotation consists of Freddy Peralta, Civale, Priester, Quintana and Chad Patrick, with Hall doing some starting but also some long relief work. It’s not totally clear what the club plans to shift with Misiorowski’s promotion. It could simply be a spot start. Perhaps they will go with a six-man rotation for a while. Priester and Patrick both have options and could be sent down, though Patrick’s numbers this year have been far better than Priester’s.

The Brewers are still in the playoff race. Their 35-32 record currently has them just three games back of the final National League Wild Card spot. Regardless of how they perform over the next few weeks, it’s possible to imagine them trading some starting pitching this summer. Woodruff, Quintana, Civale and Cortes are all impending free agents, which would make them logical trade chips. A bolder move would be Peralta, who can be controlled through 2026 via an $8MM club option.

Sending one or more of them out of town would theoretically downgrade this year’s rotation but the Brewers could perhaps provide replacements from within the system while bolstering another part of the roster or simply adding some prospect talent. Hall could be given a more proper rotation gig. Gasser could get back in the mix later in the year. Myers, Logan Henderson and other arms are in Triple-A and could be recalled.

The Brewers don’t have a lot of spending capacity, so this kind of tough balancing act is normal for them. Recent years have seen them trade away guys like Josh Hader and Corbin Burnes while still trying to field a competitive team. Those trades usually see them targeting a mix of MLB-ready talent and prospects or draft picks. Given the number of rotation options they have in the mix now, another move of that nature may be in the cards this summer.

That will be a situation for the next few weeks. For now, one of the most electric arms in the minor leagues is coming up to the show. As a consensus top prospect, Misiorowski is eligible for the prospect promotion incentives. The Brewers can’t earn an extra draft pick based on his performance in awards voting this year because they didn’t call him up early enough. Misiorowski can earn himself a full year of service time if he finishes in the top two in Rookie of the Year voting, though that will be a long shot. The race is still fairly wide open but Misiorowski is getting called up late and is already near his personal high in innings pitched in a season, so it’s possible the club eases off his workload at some point later in the year.

Photo courtesy of Dave Kallmann, Imagn Images