Originally Posted by BobbyOne
Feather, You are right: that's a problem in my argumentation.
I only can argue that Pete lost to very strong claycourters: Agassi, Bruguera, Courier, Kafelnikov...
Federer only really lost to the greatest clay court of all time at FO during his peak, him and Kuerten. Sampras also never made it past the 2nd round of the FO after 1996 IIRC. Don't place him and Federer in the same breadth on clay.