By WARREN MAYES
ST. LOUIS (AP) — Merrill Kelly threw seven shutout innings and Ketel Marte and Nick Ahmed each homered in the eighth inning, lifting the Arizona Diamondbacks 2-0 over the St. Louis Cardinals. Kelly pitched seven scoreless innings for the win and held the Cardinals to two hits with four strikeouts. Ian Kennedy gave up a leadoff walk before retiring the side in the ninth to pick up his first save and preserve the shutout. St. Louis starter Miles Mikolas pitched 7 1/3 innings, allowing four hits with seven strikeouts and no walks.