Well he just lost a final in Hamburg that he should have won, before that lost a final in MC where he was in control of both sets (one he was 4-0 up in and didn't even get to a tiebreak) and then got destroyed at RG. All to Nadal. Then he plays him again with all the pressure to readdress the balance, goes 2-0 down and being unable to take a break points, he then battles back only to lose. I'm surprised he didn't have the AO reaction there.
Yes he had won 5 times in a row, but Nadal won 4 RG titles in a row never losing a match and was pretty annoyed when he finally lost.
Federer, Djokovic, Delpo fan (also like Nalbandian, Dimitrov, Tsonga)