+1 Congrats, Roger. I doubt it. I think 16-17 is his peak. He's going to be 28 in August and has to deal with Nadal, Murray and Djokovic, all of whom are four-five years younger than he is. Federer probably has 2-3 good years left in him and I'm not sure he can win, on average, every other major over that time (6 out of 12) to reach 20. I'm giving him 5 years, thats where I get that number but yes its going to be very tough. Wimbledon and the US Open are still great chances for him. I just think based on his style of play and health he has the potential to stick around and even reinvent himself. I keep wondering if Nadal's knees are going to hold up. They bothered him a few years ago during a championship match @ Wimbledon, and now I hear they are bothering him again. Nadal might be young and a fantastic tennis player, but knee problems are never a good sign. Roger appears to still be in pretty good health. I thought over a year ago that Nadal would already be starting to break down and that Djokovic would be Federer's main threat which I was off on. Nadal really impressed me this past year, and I was trying not to like him.