Mo has spoken on Pettitte and HGH.

“I am glad that he did that, maybe I would have done the same thing, God knows. I want to help the team as quick as I can," said Rivera, who said he has never thought of using HGH and admitted to being naïve about baseball's drug culture. “It was the wrong thing to do but I support Andy and the way he works and how hard he works. I am glad he said that. We all make mistakes. We don't point fingers at other people, I don't think like that. I love Andy and I support Andy's decision. The thing that I admire about him is that he came out and said he was sorry and that he did it."