New York Mets starting pitcher Kodai Senga exited Thursday’s game against the visiting Washington Nationals because of an apparent right leg injury.

With one out in the sixth, Senga raced over to cover first base on a grounder by CJ Abrams. First baseman Pete Alonso fielded the ball but made a high throw as Senga covered the bag.

Senga leaped to corral the ball and landed awkwardly on the bag for the out but immediately went down in foul territory. He was holding his right hamstring and exited the game after a brief consultation with manager Carlos Mendoza and a trainer.

Senga allowed just one hit and the Mets held a 4-0 lead when he exited the contest.

Senga, 32, entered Thursday with a 6-3 record and his 5⅔ innings lowered his ERA to an MLB-best 1.47.