Mike Cameron left Tuesday's game against the Mets in the 11th inning with a tight right hamstring. Cameron, who tied the game with a two-run double in the bottom of the ninth, apparently suffered the injury after reaching on a walk in the 11th inning. Bryan Petersen moved over to replace him in center field to begin the 12th while Vinny Rottino entered the game to play right. Cameron is considered day-to-day.