ST. PETERSBURG, Fla. — Carlos Pena was involved in two key plays, and both went against him. Tim Hudson scattered four hits over 7 2-3 innings, David Ross homered and the Atlanta Braves beat the Tampa Bay Rays 2-0 on Sunday. Jonny Venters, who replaced Hudson after B.J. Upton had an infield single with two outs in the eighth, loaded the bases by hitting both Matt Joyce and Pena. The left-hander caught a break when Pena was called out between first and second when he was hit by Luke Scott’s grounder. “It caught me in mid-stride,” Pena said. “It was just a helpless feeling because I couldn’t go anywhere. I think I was in the air when the ball was hit, and it was a rocket. It was just bad…