Yankees' Alex Rodriguez sits in the dugout as Derek Jeter...

Yankees' Alex Rodriguez sits in the dugout as Derek Jeter stands next to him during the first inning against the Boston Red Sox at Fenway Park. (Sept. 13, 2013) Credit: AP

BOSTON -- After watching Alex Rodriguez run the bases Friday night, Joe Girardi believes his left hamstring might be bothering him.

Girardi originally planned to start A-Rod at third base Saturday afternoon after using him as the DH for the third straight game in Friday night's 8-4 loss to Boston. "My mind is changed a little bit,'' he said after the game, "but I'll check with him tomorrow. It's a concern of mine.''

A-Rod, with his tweaked hamstring and bad hips that have him running about as fast as David Ortiz, had to stop at third on Robinson Cano's two-out, two-run double in the seventh that tied the score at 4-4 Friday night. He was stranded there when Alfonso Soriano grounded out. He clearly ran gingerly while going first to third on Soriano's double Thursday.

Romine slowly improvingAustin Romine, who suffered a concussion Tuesday when he took a foul ball of his mask, felt better, Girardi said, even taking some swings indoors. Girardi said he was going to participate "a little bit" in pregame work on the field, but rain took care of that. "Is it possible he doesn't play over this weekend?" Girardi said. "Yes it is."

Girardi hoped Boone Logan, out since Sept. 6 with elbow inflammation, "turned the corner a little today" by playing catch.

No save for youThough it received plenty of attention, Girardi wasn't worked up about the official scorer's somewhat unusual decision Thursday night to award Mariano Rivera the victory instead of the save.

Although David Robertson was the pitcher of record when the Yankees scored the tiebreaking run in the ninth, he had allowed a tying three-run homer by Danny Valencia in the eighth. He was deemed ineffective and the win was given to Rivera, who pitched a 1-2-3 ninth. "I'd like to see him get a save," Girardi said. "But when I woke up this morning, it didn't change my life."

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