The Oakland A’s lost one of their pitchers on Wednesday, but not the one whose health had been in the news all week. Reliever Blake Treinen is out for the rest of the regular season, reports Melissa Lockard of The Athletic.
On a happier note, Mike Fiers, who exited his start early on Saturday due to nerve irritation in his arm, is officially listed as the A’s starter for Friday’s game.
For Treinen, the diagnosis is a stress reaction in his back, reports Susan Slusser of the S.F. Chronicle, who adds that he’s not yet ruled out for the entire postseason.