Mets outfielder Brandon Nimmo went 0-for-4 with two strikeouts and played seven innings in center field in the first game of his rehab assignment from a partially collapsed lung.
Nimmo, who last played in a game July 4, was cleared last week to take batting practice. He was hospitalized and underwent X-rays during New York's road trip to St. Louis after he complained about how he felt.
He said earlier this month he wasn't sure what caused the partially collapsed lung.
Nimmo was hitting .350 with no home runs and two RBIs in 15 games with the Mets this season. In the minors, he was hitting .223 with four home runs and 20 RBIs.