I noticed Cherly is there at the beginning of many stages, right when I imagine he is trying to warm up and get focused, and probably a bit nervous. I think she would be a distraction if I were in his position. I'd probably be all bi*chy, then she'd get bi*chy back at me. At least that's the way ithings go with me and my girlfriend.
(Incidentally, I don't see the big deal with Cheryl. Everyone says, "oh, she's so hot..." but I don't think she is spectacularly good looking -- especially in the ranks of millionaire pro athletes.)