Scott Sizemore hit a walkoff RBI single in the 10th inning of Saturday's 4-3 defeat of the Angels. The Angels took Game 1 of Saturday's doubleheader by a score of 4-2 but couldn't hang on for the sweep. Sizemore finished the evening tilt 2-for-5 with two strikeouts. The 26-year-old third baseman has a .785 OPS since joining the A's in late May. He had a .567 OPS in Detroit.