DETROIT -- Brett Anderson is on the Oakland Athletics active roster for the American League Division Series. That makes the possibility that he will start a game in the series more of a probability. Anderson suffered a Grade 2 strain of his right oblique 20 days ago in Detroit. He has been throwing on the side and working toward returning to the A's starting rotation. The A's starting rotation consists of nothing but rookie pitchers, so a return to the rotation for Anderson would be a big boost for the A's.Anderson went 4-0 in his first four starts after returning from Tommy John surgery. He was 4-2 with a 2.57 ERA in six starts for Oakland. If Anderson makes a start it will come at the Oakland Coliseum. He'll likely pitch in Game 3 or 4 in the ALDS. The A's may want to see how they fare in Detroit before deciding if they need to use Anderson. Anderson, 24, has started four games in his career against the Tigers. He is 2-2 with a 3.78 ERA in 16 23 innings pitched. Relief pitcher Jim Miller made the trip with the A's but isn't on the active roster. They likely brought him to Detroit just in case Anderson wasn't going to be ready to pitch.