Vest (undisclosed) was activated from the COVID-19 injured list Saturday.
The 25-year-old landed on the COVID IL on May 21 after a potential positive test by a member of the pitching staff, and he'll rejoin the active roster Saturday. Vest has a 4.22 ERA, 1.41 WHIP and 15:10 K:BB with five holds across 21.1 innings this season.