The Houston Astros remain in the thick of the AL wild-card race, thanks to a pair of big swings from Evan Gattis and a clutch throw by catcher Jason Castro. Gattis homered twice, Castro threw out a runner to end the game and the contending Astros beat the Oakland Athletics 6-5 on Wednesday to complete a sweep. ''Just trying to finish strong,'' said Gattis, speaking both of himself and the Astros. More...