Sisk threw a perfect inning with one strikeout in a 7-0 win over St. Louis on Wednesday.
The 29-year-old entered in the seventh inning and struck out Nathan Church en route to his eight scoreless showing in the last nine appearances. Sisk has recorded a 1.71 ERA through his first 21 innings this season, though he's primarily been limited to middle relief thus far while picking up two holds and no saves.