The Yankees are concerned about the recent struggles of CC Sabathia as they continue to tread water in the American League playoff race.

"It could be innings over his career," Joe Girardi said. "I mean, he's logged a lot of innings over his career. The workload, that's the only thing I can point to."

His fastball averaged 92.1 mph in Saturday's start and his cutter and slider were not as sharp as normal.

Sabathia said it was not a concern for him, noting that his velocity was better in his last start against the Rays on Sept. 3, when he averaged 93.3 mph.

"It has nothing to do with velocity, health or anything like that," he said. "It's just about me making pitches and going out and shutting a team down when we get the lead."