Eduardo Nunez has bruised biceps

DETROIT -- The injury-depleted New York Yankees suffered another loss Friday when Eduardo Nunez, already filling in for the injured Derek Jeter at shortstop, was forced to leave the game against the Tigers after being hit with a pitch in the fourth inning by Doug Fister.

Nunez was diagnosed with a bruised right biceps. Precautionary X-rays were negative.

Nunez said the pitch hit him in the area where the biceps meets the shoulder, and he felt the impact down to the bone.

"I was afraid it was broken," he said. "I felt much better when I hear the X-ray was negative, just a bruise, you know? We'll see how my arm recovers."

The pitch, an 88 mph fastball, hit Nunez as he turned to avoid it. Nunez grimaced in pain as he fell to the ground. He was helped off the field by manager Joe Girardi and a team trainer, and was replaced in the game by Jayson Nix.

Girardi said Nunez would not play Saturday but did not plan to make a roster move just yet.

"I don't know what we'll do," Girardi said. "My hope is it's only a couple days. We'll have to just evaluate it day by day."

Girardi said that if Nunez is not available for a few days, catcher Francisco Cervelli, who has played a handful of major league games at second and third base, would be his backup infielder behind Nix, who will play shortstop.

Nunez is batting .364 in early-season action with four hits in 11 at-bats.