Mets catcher Francisco Alvarez exited Sunday’s 7-3 win over the Seattle Mariners in the Little League Classic in Williamsport with a right thumb injury. Alvarez will return to New York and undergo an MRI on Monday’s day off.

The Mets have another injury concern on their hands as their NL playoff chase picks up following Sunday's 7-3 win over the Mariners.

Alvarez is getting an MRI on his left thumb after leaving Friday's game against the Dodgers, Tim Healey of Newsday reports. "I'm pretty concerned. I'm not going to lie," manager Carlos Mendoza said.