MLB.com's Jared Diamond reports that Derek Jeter is day-to-day after exiting last night's win over the Nationals before the eighth.

Joe Girardi thinks that the injury occurred when Gary Sheffield slid into Jeter on Sunday.

"He said he woke up a little sore yesterday, and it was sore to run today," Girardi told Diamond. "We noticed for the first time when he was running tonight that he had a little hitch, and it seemed to get worse and worse, and that's why we got him out of there."