Nunez had two doubles in Saturday's victory over the Mets and since Jeter went on the disabled list, Nunez is hitting .339/.381/.525 with two home runs and five doubles in 59 plate appearances.
Jeter is expected to return to the Yankees' lineup on Monday. He played five innings in the field and went 1 for 2 with a walk and a run scored in a rehab assignment at Double-A Trenton on Saturday. He reported no pain in his injured right calf and is expected to play again tonight for Trenton.
Jeter currently has 2,994 hits and manager Joe Girardi has said he will leadoff and play short when he returns.