[Senator Clay Davis]

At this point I don't see any reason Roger can't play 2-3 more years. I think he can manage the schedule to the point he plays around 12-15 events but keeps his ranking high enough up to keep getting easy draws to at least R4 of majors. His fitness level and movement is still incredible and he doesn't get hurt it seems.

And he's the best server ever and the best server in the world right now. As long as that serve is at an elite level, he's going to avoid the long, gruelling matches that Djokovic and Murray and Nadal seemingly cannot. He's definitely giving the Olympics another go next year, so he'll be doing next year at least. Even if he loses 2 steps from this current form, that's still a top 5 player in the world. His legacy beyond being the greatest is the amazing longevity at the highest level. Never seen it with any other athlete, including Fed's idol, His Airness.