Though Sheffield says he was under doctor's orders not to run because of his knee, he did so anyway because Bonds and his trainers wanted him to. Now all of a sudden my knee was hurting, ... He said something to me about being late. I did not respond, because if I did respond at that particular moment, I would have knocked him out. That's how I was feeling. But I said to myself, No, I'm just going to walk away, and when I say walk away I mean walk away.