Espino recorded two strikeouts over one perfect inning against the Brewers on Wednesday.
Espino came in to relieve Gavin Williams in the sixth inning and struck out Garrett Mitchell and Cooper Pratt before inducing a flyout for a clean MLB debut. The 2019 first-round pick, who was once one of the top prospects in baseball before injuries took a toll, had a 5.30 ERA and a 29:15 K:BB in 22 appearances (18.2 innings) for Triple-A Columbus this year prior to being promoted last week.