Alvarez stayed in the game after his double in the seventh inning. He did not come out to catch in the eighth inning of the Mets’ 7-3 win over the Mariners in the MLB Little League Classic. Mets manager Carlos Mendoza said Alvarez would return to New York for an MRI. “Right now, we don’t know what we’re dealing with,” Mendoza said.

Mark Vientos sent the Mets to a 7-3 win over the Mariners on Sunday night in the Major League Baseball Little League Classic.

Mets catcher Francisco Alvarez left the game with a thumb injury after a three-hit night in New York’s 7-3 win over the Mariners.