Hideki Matsui felt his left hamstring tighten during the second inning of the Tampa Bay Rays' 4-3 win Monday against the Yankees and removed himself from the game.
Rays manager Joe Maddon said the team will know more about Matsui's condition when he is reexamined before Tuesday's game.
"We're just going to say it's tight for now," Maddon said.
Matsui, making his fifth start for the Rays in right field, suffered the injury while chasing a foul ball by Derek Jeter that landed in the seats beyond the Rays bullpen.
"I felt like I pulled something," Matsui said though his interpreter. "Something tightened up. So when I came back to the dugout they told me for precautionary reasons to come out of the game."
Matsui said the hamstring felt better after the game.
When asked if he thought he might go on the disabled list, he said, "I think it's going to be a few days but not to the point where I would go on the DL."