This may have been discussed before, but forgive me for not going through over 1,000 pages of threads to be certain, but I was watching that doubles match on youtube between Federer/Sampras vs Nadal/Agassi, and to me it's still painfully obvious that Agassi and Sampras still hold deep down grudges against eachother. Agassi made a comment to Sampras about having to be serious which I thought was funny. Sampras then mimmicked Agassi's walk which I thought was funny, but then Agassi mentions the tipping incident which he mentioned in his book. IMO Agassi crossed the line. They sort of kissed and made up after, if anything for the crowd, but I was just wondering if anyone knows for a fact how these 2 really feel about eachother. On a side note, Federer was all class in that match. When you could sense the tension between Sampras and Agassi during the above incident, Federer made a joke to Nadal to break the tension. Just a really likeable bloke. Nadal, due to his poor English, didn't say much, I'm sure he would have if he was more fluent.