Perhaps, David Ferrer and Janko Tipsarevic will turn into an epic match, but I'm not counting on it. The Kevin James-Jim Courier v. Johnny Mac Adam Sandler could be spectacular, but I heard James has mobility problems. Anywho, it seems pretty clear cut that the MoD is Djokovic v Del Potro tonight.Every once in a while, two top players play each other a few times in a year in big matches. This is the case with Djoko and Del Po. Del Po beat Djokovic for the first time in his career (and only 16 months separate the two with Djoko being 25 and Del Po turning 24 next month) at the London Olympics (Del Po had beaten Djoko in Davis Cup last year when Djoko defaulted after the first set). Then Djoko got revenge with a straight set win in Cincy. So we really haven't seen Del Po beat Djoko in a match that wasn't really an exhibition. Can he do it tonight? The big Argie has had a good tournament, but he struggled with Roddick for two sets and Djoko gunned down Roddick in dominant fashion at the Olympics. Djoko has not lost a set coming into this quarterfinal match. So that leads me to believe that Djoko beats Del Po in three and then feasts on the little Spaniard, Ferrer in the semis. (Ferrer has won 5 of 13 matches against Djoko, but never on outdoor hard courts.) (Ferrer went down a break to Tipsy on his first service game, but is currently up 4-2, 30-love. Tipsy's had a nice ride up to the Top 10, but as Spadea said the other day, "Are you kidding me? You don't think I can beat Tipsarevic? I beat him in Paris Indoors a few years ago." Actually, Spadeaa lost that match in 2007, 7-6, 7-6, but look, Paul Ryan said he ran a sub 3 hour marathon and he actually ran it in over 4 hours. Or maybe I just heard Vince wrong because he never in the past has gotten a match score of his wrong.)What do you make of Fed's sour grapes from last night:"Today I always know I'm going to put in the best fight. I did that tonight again with what I had. Obviously I wish I could have played better. So many moments I thought, 'Man, it's just not happening for me.' It was just a very disappointing match for me."And this:"I really expected myself to play better tonight," admitted Federer, who reigned at Flushing Meadows from 2004-2008. "Especially at night I have had such a great record. I felt good. Such an amazing summer I had. I really thought I was going to come out and play a solid match. I didn't do that tonight. Obviously there is a bit of a letdown now."Now, I'm not seeing the whole interview. Maybe Fed also said that Berdych just was the better player tonight, but I didn't see those comments. The Fed cannot get out of his own way in these post-loss pressers.