Once a promising young starter for the Brewers, Peralta hit the skids in 2015 and couldn’t steady himself even after a 2017 transition to the bullpen. Kansas City’s reclamation attempt also fell flat: in 42 relief appearances for the club this season, Peralta posted a 5.80 ERA/5.85 FIP on back of a mere 5.36 K/9. Command was always an issue for the now 30-year-old, who often flashed electric heat but rarely displayed the bat-missing secondary stuff to match.
The move was somewhat overdue for the Royals, whose players are afforded some of the longest leashes league-wide. The KC ’pen has again been shaky this season, though the trio at the back-end (Ian Kennedy, Jake Diekman, Scott Barlow) has been far more reliable than last season’s iteration.