Joe Girardi believes that byproducts of a previous injury affected Derek Jeter's footwork on the play in which he broke his ankle on Saturday night.

Girardi also acknowledged that Jeter had received a cortisone shot to allow him to keep playing after he originally suffered a bone bruise in early September.

Jeter suffered a bone bruise in his left foot in Game 3 of the AL Division Series.

"I don't think he was playing on a stress fracture, but I think the weakness in his ankle, and the foul tip off his foot, contributed to that," Girardi said. "You hear a lot of guys talk about when they sprain one ankle, they usually hurt something else. I think it's inevitable, if you continue to play with something hurt, you're probably going to end up hurting yourself somewhere else."