It's a hard comparison to make with Sampras' career over (14 grand slam titles) vs. Federer (6 grand slams), whose future is still unknown.
At 24, he's yet to hit his peak and the commentators went as far as saying he could be the best ever.
After watching yesterday's match against Agassi, I would have to say Sampras at the moment.
Fed's service game is very good with a balance of power and accuracy, but he only hit 120's on first serve.
Sampras used to hit 130-140's all day and even 150 mph.
Combine his strong serve with his volley game and overhead smash, he was unbeatable for a good stretch.
At 24, he's yet to hit his peak and the commentators went as far as saying he could be the best ever.
After watching yesterday's match against Agassi, I would have to say Sampras at the moment.
Fed's service game is very good with a balance of power and accuracy, but he only hit 120's on first serve.
Sampras used to hit 130-140's all day and even 150 mph.
Combine his strong serve with his volley game and overhead smash, he was unbeatable for a good stretch.