Thornton was placed on the 15-day disabled list Friday due to left Achilles tendinitis, AJ Cassavell of MLB.com reports.

EDGE Analysis

The veteran reliever made the Padres' Opening Day roster this spring after initially being in camp as a non-roster invitee. However, he is dealing with a case of tendinitis in his Achilles tendon that'll shelve him for the time being. The Padres announced that his placement on the disabled list is retroactive to April 4, so the earliest he can return will be April 19. Robbie Erlin was recalled to the bullpen in a corresponding move.