Athletics manager Mark Kotsay confirmed Thursday that Wood will miss the remainder of the year due to shoulder surgery. No word yet on how long he’ll wind up sidelined heading into next year. The 33-year-old lefty wound up making just nine relief appearances this season in his Oakland debut before hitting the shelf back in mid-May with rotator cuff tendinitis.

Wood was placed on the 15-day IL on May 15, so the southpaw now won’t be eligible to return to the Athletics until after the All-Star break. The southpaw is now off the 40-man roster, and it clears room for Michel Otañez, who had his contract selected from Las Vegas in a corresponding move.

With Wood joining Joy Boyle and Paul Blackburn on the IL, the A’s have lost 60% of their rotation this month. Aaron Brooks is starting for the A’s today. Osvaldo Bido might come up in Wood’s place later this week.

Wood said it was something he thought he could pitch through, but Sunday’s miserable outing against the Mariners seems to have brought that to an end for now. It’d be a big blow to the A’s to lose their third starting pitcher in a week. With Joey Estes and Aaron Brooks already replacing Joe Boyle and Paul Blackburn, Osvaldo Bido is probably next in line.