From Chronicle Staff Writer Susan Slusser at the Coliseum

First baseman Brandon Moss was unavailable Wednesday with a right hip problem that will require offseason microfacture surgery, Moss told The Chronicle after the A’s loss to the Angels.

“It was worse that we thought it would be,” said Moss, who had an MRI and a cortisone shot before the game. “The shot should help me get through the rest of the season, but it won’t fix it.”

Moss told The Chronicle that the previously unreported problem has affected him much of the year and the MRI showed so much torn cartilage that he has bone-on-bone issues. He didn’t want to blame his second-half numbers dip on the problem but Moss said that he does not have much range of motion or strength in the joint as a result.

Moss could be available to play on Thursday or Friday at Texas.