Zastryzny, 31, has appeared in parts of five big league seasons but was out of MLB from 2019-21. He returned for a brief look with the Mets and Angels in 2022 before logging a more significant workload of 20 1/3 innings over 21 appearances with the Pirates this past season. Zastryzny posted a 4.79 ERA with a 15.5% strikeout rate, 13.3% walk rate and 38.8% grounder rate in that time. Overall, he carries a 4.70 earned run average, 18.4% strikeout rate and 11.2% walk rate in 59 1/3 MLB frames.
While the big league track record may not leap out, Zastryzny has been quite sharp in his past three seasons of Triple-A work, pitching to a 3.62 ERA with respective strikeout and walk rates of 28.8% and 8.1%.
Zastryzny is out of minor league options, so if he makes Milwaukee’s big league roster at any point, he’ll have to stick in the Majors or else be exposed to waivers before he can be sent back down. He’s been previously outrighted as well, so he’d have the right to elect free agency if he clears waivers at any point.
The Brewers have several lefty bullpen options, with Hoby Milner, Ethan Small, Clayton Andrews and Aaron Ashby (pending his rehab from this year’s shoulder surgery) among the options currently on the 40-man roster. Zastryzny will add a non-roster entrant to that mix, and he’ll head to Triple-A Nashville to open the season if he doesn’t crack the roster out of spring training.