New York Yankees left-hander Andy Pettitte left Thursday's game against the Seattle Mariners in the fifth inning, apparently because of an undisclosed injury, MLB.com reported.
Pettitte, 40, winced after throwing his final pitch, which struck out Kyle Seager for the second out of the fifth inning.
Yankees manager Joe Girardi came to the mound and spoke with Pettitte for a while before Pettitte left the game.'
He was relieved by Shawn Kelley.
The nature of Pettitte's injury was not revealed.
Pettitte allowed two runs, four hits and three walks while striking out five.
He was 4-2 record with a 3.83 ERA in seven starts before Thursday's game.
Pettitte was skipped from a start last month due to back spasms.