Qualls blew a three-run lead, slumping Brandon Moss then hit a go-ahead single during a six-run rally in the ninth inning and the Oakland Athletics beat the Houston Astros 7-4 Tuesday night. Houston led 4-1 before pinch-hitter Alberto Callaspo had a two-run single off Qualls (1-2). Brandon Moss ended an 0-for-14 rut with an RBI single off Tony Sipp and then Josh Donaldson hit a two-run double off Jose Veras. Outfielder George Springer, who has been on the disabled list since July 20 with a right quad strain, took batting practice Tuesday. Houston lefty Dallas Keuchel, who is 9-7 with a 3.11 ERA, will try to follow up a solid outing in a 2-0 loss to Miami in the final game of the three-game series Wednesday. Houston second baseman Jose Altuve extended his hitting streak to 11 games with his RBI single in the fifth.