The Mets’ Yoenis Cespedes follows through on a three-run home run, one of three roundtrippers he smashed Tuesday. (AP Photo/Laurence Kesterson) Associated Press PHILADELPHIA – Yoenis Cespedes hit three of New York’s seven homers to back Matt Harvey, and the Mets beat the Philadelphia Phillies 14-4 Tuesday night. Harvey (2-0) left with tightness in his left hamstring after allowing two runs and five hits and striking out six in 5 2/3 innings. Phillies starter Clay Buchholz (0-1) also exited because of an injury, a strained right forearm.