CNN  —  Have you heard the one about the funny tennis player? You probably haven’t, by the nature of their work, they are notoriously serious people; but one man can vouch for them. Michael Kosta was once among the top-ranked tennis players in the world and now he’s a successful, Emmy-winning comedian. His journey is as unorthodox as it is fascinating, and he says that it’s tennis that made him funny, although he wasn’t laughing much at the time. Kosta made it up to number 864 in the ATP