If there was no Federer, then the ATP tour since 2003 would probably have looked like this: Roddick - two more Wimbledons and another US Open Nadal - a Wimbledon title Hewitt and Agassi - another US Open Safin - another Australian Open Baghdatis and Gonzalez - an Australian Open Philippoussis - a Wimbledon Roddick would have benefited the most, and the tour would have been much more balanced and competitive. But we would have missed the genius of Federer. If there was no Nadal, then: Fed would have 13 majors, one Grand Slam (2006), and be on his way to 15 majors and a second Grand Slam in 2007. And then he would retire as the undisputed GOAT after the US Open. And again no more of the genius of Federer. The ATP tour would have been a very boring affair. Yes, I know you can argue that the seedings in the majors would have been different, either Fed or Rafa beat players earlier in the draws that might have challenged for titles, Safin would still be a head case, Philippoussis would still be doing a seedy reality TV show, etc. My point is that while I'm a Fed fan, thank God Rafa came along to provide some balance to the ATP tour and some relevance to Fed's legacy.