Great post on Laver Hoodjem. He really hit that backhand so nicely, with great variety too. It was an awesome shot. On the fitness issue. Laver was extremely fit and in his time, players took very little time between points, did not towel off at all between points and even in the 1960's players did not sit on changeovers. Watch a Laver or Borg match. Even after tough points, they get to the next point quick. Federer is more prone to do that. He plays relatively fast and doesn't take 25-30 seconds frequently as many players do now. Also think about the travel conditions those players faced. Think about current players having to play in Laver's shoes literally. Many conditions faced by Laver are unlike anything current players have faced. Laver did not get that good without many, many days of incredible training, both on and off the court. No peds either. No question about that right? I'm not so sure of the current top 100. He played a ton of tennis in the blazing Aussie sun. The point about how Laver and company played on grass is a good one. That surface is easier on the body. Yet, serve and volley tennis can also be very taxing on the body with injuries from a lot of frequent serving and volleying, including lots of lunges at net, etc. Andy Roddick mentioned this in a recent interview as to many of his own peers. Many of the serve and volley players he knows have sustained certain injuries due to that style of play. It can be very physical to serve big and then throw your body all over the place at net a lot. That is also very taxing on the body. Mobility style is also important. Some players can run a lot but not do too much damage, while others are a lot heavier on their feet. Laver glided around the court for example.