Reyes, who batted righthanded against righthander Bronson Arroyo in the Mets' 3-1 loss to the Reds last night, has not been able to swing from the left side. He said he took two swings from the left side in the batting cage before the game and had to stop because of the pain.
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"We need to figure out why it's in there," Reyes said. "It's not normal."
Reyes returned to the lineup on Tuesday night. He went 2-for-4 on Tuesday and 0-for-4 last night. He has been running well, but he said the injury is preventing him from sliding head first, which he prefers to do.
The Mets open a three-game series against the Braves Friday. Atlanta is throwing three righthanded starters. Reyes plans to be in the lineup, if only as a righthanded batter, and also plans to play in Tuesday's All-Star Game in Anaheim. He was selected as a reserve.
Mets manager Jerry Manuel said before the game that he endorsed Reyes' desire to play in the All-Star Game even though he is not 100 percent and has never been the fastest healer.
"I think if you get selected to that and you feel that you can play, [I'd] like to see you participate," Manuel said.
Reyes suffered the injury June 30 in San Juan. He missed six games.