No Andy Murray's girlfriend did not leave him because he played video games. Kind of sad that one tabloid comment from an anonymous source has become 'fact'.
Mike Yani is a gamer, I think. I know he used to play WoW. Jan-Michael also plays, but I'm not sure how much time he has for it anymore. There's that photo of Nadal and Moya playing video games together, but I don't know if I've heard Nadal talk about playing in a few years.
Pros should stop wasting money on coaches and doctors and just read the experts on this forum.