| San Francisco Examiner OAKLAND — In the days after Khris Davis went down with a grade one groin strain a week ago, Oakland Athletics manager Bob Melvin described a syndrome that had seemingly gripped his club’s offense: The KD Effect. Since the loss of Davis — who still … A’s waste Trevor Cahill’s brilliant outing in loss to RaysThe Mercury News A’s offense takes day off in 13-inning, 1-0 loss; Cahill’s great start wastedSFGate |