Brett Anderson leaves A's start with left ankle sprain
Randal Grichuk hit a slow infield grounder in between third base and the mound. Anderson quickly moved to field the ball, slipped, then got up limping as a team trainer came out along with manager Bob Melvin.
After a brief discussion Anderson threw two warmup pitches before Melvin called for reliever Yusmeiro Petit.
Anderson allowed two runs on four hits and retired eight batters.