It was Mark Canha who delivered a pinch-hit, two-run homer that tied the game in the sixth, and Khris Davis who ended it with his second homer of the night and Major League-leading 45th of the season, a walk-off solo shot off right-hander Matt Magill for a 7-6 series-opening win over the Twins on Friday night. The A's magic number dropped to three with their third straight win, though they remained 1 1/2 games behind the Yankees for the top American League Wild Card spot following New York's win against the Orioles. They also sit 3 1/2 back of the first-place Astros in the AL West with eight to play.