Trivino coughed up four runs on a hit, two walks and a hit by pitch over two-thirds of an inning in Friday's 11-10 loss to the Blue Jays.
Making his first appearance since Aug. 26, Trivino entered the game in the eighth inning in a low-leverage spot with the A's ahead 8-2, but the right-hander got the ball rolling on a complete meltdown by the Oakland bullpen. He has been dealing with back trouble recently, but this still marked the fourth straight outing in which Trivino has been scored upon, and his usage Friday suggests he may no longer hold the closer job.