The hamate — a tiny bone that connects the hand and wrist — was fractured. He had surgery in Pennsylvania on Sunday and returned to Mets camp by Wednesday morning. Written on his cast were the names of his parents, girlfriend and son and that of his second child due later this season.

New York Mets catcher Francisco Alvarez will miss the next six to eight weeks after suffering a broken hamate bone in his left hand, manager Carlos Mendoza told reporters on Sunday. Alvarez will undergo surgery on Monday. Alvarez suffered the injury on a swing during live at-bats, Mendoza said.