Chamberlain was forced to exit New York's 2-1 Game 4 loss to the Orioles after being hit with a shard of Matt Wieters' lumber in the 11th inning. Manager Joe Girardi said he could not be certain if Chamberlain was ready to pitch.
"The one thing I can say about Joba is, he's pitched through a lot in his career," Girardi said. "If there's any way he can get out there, I'm sure he'll make himself available."
Other than Chamberlain and Game 4 starter Hiroki Kuroda, Girardi said that he expected all hands to be on deck out of the bullpen for Game 5, including left-hander Andy Pettitte and right-handers David Robertson and Rafael Soriano.
"I feel good about it. I feel good about CC [Sabathia] on the mound," Girardi said. "I feel good that we're going to go out and play an excellent ballgame. You play 166 games and it comes down to one game, that's baseball. Let's go find a way."