Just wondering how you think they'd perform if 1) Sampras or 2) Agassi turned pro at the same time Federer did, and Fed never existed. I'm not talking about both at the same time, but how would each one do one at a time with the current players. Think about the change in court speeds during this era and racquet technologies. Would Sampras still dominate wimbledon? Would the slowdown at wimbledon and the lack of Sampras (and Federer) make Agassi a more dominant force? How many slams would each have won up to this point, compared to Fed's 12?