Kole Calhoun’s RBI single had given the Angels a 2-0 lead and put runners on first and second with one out, Iannetta being the runner at second.
"He didn't really camp under it," Iannetta said of Marisnick. "He kept drifting back and drifting back and drifting back. I didn't know if it was going to go over his head. No outs, I'm tagging no matter what. One out, I'm going halfway. I just played that one by the book."
Had Iannetta avoided the ball, Pujols' shot would have gone into center field a hit, probably scoring Iannetta from second. Had Iannetta tagged on Trout's fly ball and taken third, he would have scored easily on Pujols' hit.