Back-to-back smashes lead A’s past Rays

Khris Davis puts the A’s ahead in the sixth inning with a home run Tuesday against the Rays. (AP Photo/Chris O’Meara)ST. PETERSBURG, Fla. — Just when it seemed the A’s had their backs to the wall, they went back-to-back — over the wall — and that sudden turnaround produced a 4-3 victory against the Tampa Bay Rays on Tuesday night at Tropicana Field.

The A’s hit consecutive sixth-inning home runs off Rays reliever Emilio Pagan, first a two-run go-ahead shot by Matt Olson, then a solo shot from Khris Davis.

That ultimately made a winner out of right-hander Mike Fiers (6-3), who allowed just three hits and retired the last seven batters he faced. Fiers was followed by three relievers, including…