WILLIAMSPORT, Pa. (AP) — New York Mets catcher Francisco Alvarez needs an MRI on his right thumb after he jammed his hand on ahead-first slideinto second base Sunday night against Seattle. 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 MLBLittle League Classic. Mets manager Carlos Mendoza said Alvarez would return to New York on Monday for an MRI. "Right now, we don't know what we're dealing with," Mendoza said. Alvarez went 3-for-4 with two runs scored and an RBI. ___ AP MLB:https://apnews.com/hub/mlb