It's nice that we have video and the internet available in the way we do to see examples of peak play for Federer, Nadal, and Djokovic for example, but we can't use it in the same way to see and assess peak play for players like Gonzalez, Rosewall, Laver, Borg, McEnroe, and even Sampras to a large extent. Even with Sampras, YouTube, video, and the internet was not used in the way it is these days. Well, at least we can see today's tennis in High Def, with great audio and video quality. Therefore, we have to greatly rely upon what each of us has been able to observe and also read about from the accounts of others as to players from past eras.
No one could manufacture a man that won 6 French Opens and 5 Wimbledon titles in a row. - Andrew Longmore