Nole is 25, Nadal is 26. Fed at 30 has not won a slam in almost two and a half years, so if we use that trajectory as an example, Nole still has two or three good shots at winning RG. The interesting thing about Nadal is that despite the miles he has put on his legs, he remains as fast as ever. The first signs of Nadal fading will come not from his tennis skills diminishing but from him losing his foot speed.