Matt Olson homered off left-hander Tony Sipp leading off the bottom of the 10th inning Friday night, completing a comeback that delivered the Oakland Athletics a 4-3 win over the Houston Astros in the opener of a three-game series between the top two teams in the American League West in Oakland, Calif.
Nick Martini lashed a game-tying RBI double in the ninth to force extra innings for the A’s (73-49), who moved within one game of the first-place Astros (74-48).





