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.

PORT ST. LUCIE, Fla. — New York Mets catcher Francisco Alvarez will undergo surgery Monday to fix a fractured hamate bone in his left hand, manager Carlos Mendoza said. The Mets expect Alvarez to miss the next six to eight weeks.