The Brewers have activated left-hander Rob Zastryzny off the 60-day injured list to rejoin their bullpen, according to Adam McCalvy of MLB.com. Righty Carlos Rodriguez is being optioned to Triple-A. Angel Zerpa has been shifted to the 60-day IL in Zastryzny’s place.
Zastryzny pitched for Team Canada in the World Baseball Classic but suffered a left shoulder strain in spring training with Milwaukee. He was placed on the 15-day injured list on March 25th and transferred to the 60-day IL in mid-April. That ruled out Zastryzny through the end of May, though he’s now healthy and returning for his third season with the Brewers.
Zastryzny’s had three extended injury absences since joining the Brewers for the 2024 season, so he’s only thrown 29 2/3 innings for them. His results in that sample have been solid. Zastryzny has a 2.12 ERA while allowing just a .580 OPS to opposing hitters since 2024. At the same time, Zastryzny’s fastball sits in the low 90s, and his 4.09 FIP since 2024 shows he benefitted from good luck (and good defense behind him).
That said, the Brewers only need Zastryzny to be a serviceable arm, not a premium back-end reliever. The club’s bullpen is in the Top 10 in the Majors by most metrics, including strikeout rate (24.3%), K-BB rate (13.9%), groundball rate (45.9%), and ERA (3.28). Among eight qualified Brewers relievers, only Trevor Megill and Jake Woodford have ERAs over 4.50. Megill has a a 2.88 expected ERA and strong peripherals, so he’s due for positive regression. Led by the nine-win Aaron Ashby, the other relievers have ranged from solid to excellent. Zastryzny is out of options, so he’ll need to re-establish himself quickly, as he can only be taken off the roster by a DFA.
Zerpa’s move to the 60-day IL is entirely expected. He underwent Tommy John surgery a few weeks ago and will therefore miss all of 2026 and a good chunk of 2027. Zerpa will likely repeat his $1.095MM salary in arbitration as a result. The left-hander had a 4.03 ERA in 118 1/3 innings with Kansas City from 2024-25, along with a staggering 60.5% groundball rate that was fifth-best among qualified relievers. With Zerpa’s current timeline, he’ll have the opportunity to provide a year and a half of serviceable relief before hitting free agency after 2028.
More to come.
