Cuddyer said he initially felt the pain while running to first base after his first at-bat, a groundout to third base.
“Just felt some soreness," Cuddyer said, "and then as the game progressed, it progressively got tighter, to the point where I had to say something."
Cuddyer had one more at-bat in the game, striking out looking in the fourth inning. He was replaced in left field by Darrell Ceciliani to start the top of the seventh.
The 36-year-old, off to a rough start in his first season with the Mets, said he's concerned about the injury, but doesn't want to jump to conclusions.
"It’s tight, stiff, sore," Cuddyer said. "We’ll see what the results of the tests tomorrow say."