Stowers exited Thursday's contest against the Royals with left hamstring tightness, Christina De Nicola of MLB.com reports.
Stowers (foot) was removed from Thursday night's contest against the Royals in the eighth inning, Christina De Nicola of MLB.com reports.
Donovan (concussion) hasn't been cleared to return to action yet, Ryan Divish of The Seattle Times reports.
The Mariners recalled Davis (hamstring) from Triple-A Tacoma on Thursday and placed him on the 60-day injured list.
The Mariners selected Fairchild's contract from Triple-A Tacoma on Thursday.
The Mariners placed Robles on the family medical emergency list Thursday.
Caissie isn't in the lineup for Thursday's game against the Royals.
The Marlins designated Jimenez for assignment Thursday.
The Marlins recalled De Los Santos from Triple-A Jacksonville on Thursday.