NEW YORK — J.D. Martinez is proving to be the hero the New York Mets need. The slugger played the hero role for the third straight day, hitting two home runs en route to a 5-1 win over the San Diego Padres on Saturday afternoon at Citi Field. Martinez had a monster day at the plate, going 3 for 3 with two homers, two walks and three RBI. It was the fourth straight win for the Mets and secured ...