sorry rahul i dont think u have the facts right...rod laver is still considered as the all time best...federer is close to getting that title if he wins the french open...sampras hasnt won the french open either...and any clay clourt specialist could stop sampras on clay...sampras shone at a time when edberg and becker was on a decline...but edberg still managed to defeat him the only 2 times they met in a grand slam...courier was not that great player...he was lucky to win all those titles at a time when no one was on top of their game......yes agassi was a good player but even he had his limitations...mind u agassi himself said that roger could beat him from anywhere in the court unlike sampras...which just meant the versitality of federer...and if that isnt enough to prove my point..all u have to look back at the only time federer and sampras met in a grand slam...at the wimbledon...federer won in 5 sets.....sampras depended a lot of his serves...federer has much more weapons in his game.....