Sampras 5 years removed from competitive tennis lost 4 close sets out of 6 to Prime peak Federer!! If Federer wasn't such a choker, mental midget, he probably goes down as the goat. Sampras couldn't have been in his head as he wasn't on the tour anymore. The fact that they played 6 close sets, five years after retiring this alone makes Sampras an all-time great!! He won the last exhibition match on the fast carpet. Remember the GOAT Jordan retired for only 17 months and was much younger than Sampras and shit the bed in his immediate return!! Also Sampras at 31, his retirement, had the same slams as Joker and one less than Nadal but way more weeks at number 1. Had they not slowed the grass, and Sampras kept playing he easily wins double digit Wimbledons.