The Mariners transferred Davila (shoulder) from the 15-day injured list to the 60-day IL on Sunday.
Davila's initial placement on the shelf was retroactive to Aug. 31, so his move to the 60-day IL will officially bring an end to his season. Before going down with an SC joint sprain in his right shoulder, Davila made 24 appearances out of the Seattle bullpen and submitted a 4.94 ERA and 1.35 WHIP across 27.1 innings.