I was reading the interview articles after every match from both players. Federer said that Sampras certainly has the ability to beat the top five players, maybe not routinely, but able to notch up wins on fast surfaces, particularly indoors. His serve is still one of the best out there, and his attacking game could cause upsets. Top 20 for sure. Sampras downplayed it all, saying he has had his run back in the 90's, and now he is happy sitting at home and watching Roger win on TV. Their next match is in MSG in March. I'm going to try to get tickets for that if I can. I'd love to see two of my all time favorites play.