Brewers get ugly injury update on promising rookie pitcher

Brewers rookie left-hander Robert Gasser will undergo surgery to fix the UCL in his throwing elbow, he told reporters, via Todd Rosiak of the Milwaukee Journal-Sentinel. It won’t be clear until the operation whether he requires a full Tommy John reconstruction or a modified ligament repair. Even in the better scenario of a slightly less significant procedure like the internal brace surgery, Gasser said he expects to miss at least a full calendar year.

The 25-year-old southpaw made his major league debut last month. Gasser found immediate success, working 28 innings of 2.57 ERA ball through his first five starts. The University of Houston product only walked one of the 114 hitters he faced. While he certainly wouldn’t have maintained that level of control, Gasser has been a solid strike-thrower whom most scouts expect to stick in the rotation. Baseball America ranked him the No. 5 prospect in the Milwaukee system and slotted him among the sport’s top 100 minor league talents entering the season.

Gasser’s initial MLB success might have increased his stock a little bit, even though his 14% strikeout percentage was well below the swing-and-miss rates he’d shown in the minor leagues. He’d certainly performed well enough to continue taking the ball every fifth day in a patchwork Milwaukee rotation. Freddy Peralta and Colin Rea have been the constants. Peralta is the unquestioned staff ace, while Rea has stepped up with a 3.29 ERA over 76 2/3 innings despite a modest 16.7% strikeout rate.

Milwaukee has otherwise cycled through a number of starters as they’ve navigated various injuries. They have lost an entire rotation to extended absences. Wade Miley underwent Tommy John surgery after two starts. Jakob Junis has pitched once all season. DL Hall has been sidelined since April. Joe Ross went down in May with a lower back strain; he suffered a setback a couple of weeks ago. Gasser is now also out for the season. That’s not even counting Brandon Woodruff, whom the Brewers knew would miss all of 2024 after he underwent shoulder surgery last October.

Bryse Wilson and Tobias Myers have stepped into the third and fourth rotation spots. While they’ve each managed decent run prevention numbers, neither pitcher is without question marks. Wilson opened the season as a reliever and has an unimpressive strikeout and walk profile as a starter. Myers is a former minor league signee on the sixth organization of his professional career. His 21.7% strikeout rate and 8.7% walk percentage are fine, but he’s had to work around an elevated home run rate.

The fifth rotation spot has recently fallen to Carlos Rodriguez, a rookie who has allowed seven runs in 8 1/3 innings over his first two starts. Junis is nearing a return from the 60-day injured list — MLB.com’s Adam McCalvy notes that he could be reinstated as soon as Friday — but he isn’t expected to immediately step back into a rotation spot. Junis has only made two abbreviated rehab appearances for Triple-A Nashville. The Brewers have suggested he’s likely to work out of the bullpen initially as they try to expedite his return to the major league staff.

In that context, it’s remarkable that the Brewers have managed a 44-30 record and pulled out to a fairly comfortable 7.5-game lead in the NL Central. They’ll almost certainly bring in at least one starting pitcher before the July 30 trade deadline. There’s a reasonable argument for GM Matt Arnold and his staff to land multiple rotation pickups. Losing Gasser should only add to the urgency to address what was the team’s biggest question mark well before their last couple of months of terrible injury news.

Gasser is on the MLB injured list and will collect service time and be paid at the league-minimum rate for whatever time he spends on the IL. Milwaukee can move him to the 60-day IL to open a 40-man roster spot whenever that need arises. (The Brewers already have a vacancy for Junis’ reinstatement after designating Elieser Hernández for assignment Wednesday night.) Gasser will not get to a full service year and remains controllable for six seasons beyond this one.