first_imgOAKLAND — A’s manager Bob Melvin said beating the two-time American League champion Houston Astros on Thursday and Friday was “good for our psyche.”The A’s trekked into new territory with their 8-4 victory in front of 21,428 fans on Saturday. After losing nine of their first 11 meetings with the Astros this season, they knocked them off for the third straight time and for the first time this year by more than a single run.Right-hander Chris Bassitt (9-5) battled through an imperfect six …last_img