Being a fan of Federer, I am here to only present objective comments. I do not intend to bring up anything related to GOAT, nor do I intend to bring up comparison to Sampras or Nadal. SO please, no trolling or flaming in this thread. Thanks. Many Fed fans have said that they feel less sad compared to his loss in AO2009. I beg to differ. I think his loss today indicates quite some negative look on his future. Here are my reasons: 1. Before this match, Federer is only vulnerable to Nadal in slams (barring his loss to Djoko in AO08 due to mono). After this match, it is all changed. It gives hope to other young guns to take out Fed in slams. It proves Fed is not invincible in slams. 2. I think today´s loss defines a turning point in his career. Some might say AO08 defines a turning point, but that may be cuz of his mono. Some might say AO09 defines a turning point, but that he lost to his nemesis Nadal. But today´s loss is something diffrent, it shows he is no longer to adjust to his best level for the last stage in a slam, and it shows he can no longer adjust his game strategy and win based on his experience in slams. It also shows he is slightly less motivated, as he himself shows less emotion after the loss. The next definite turning point of Federer, would be the moment his stops his semi final streams in a slam. 3. Today´s match shows Federer has lost a step during the later stage in the 4 hour match. It is inevitable as he ages up. Sad but true. Quite often he can not reach or could barely reach some balls which he should have no problem when he was younger. 4. Some has said Federer´s serve is on par with Sampras´s. Today´s match proved them wrong. No, Federer´server is not as consistent as Pete. Having a great serve is very important for an aging champion on the tour, and can quickly save them out of trouble. I wish Federer could keep this up for the rest of his years remaining on the tour. 5. Many has already jumped onto the Del Potro wagon. Sure I like this kid too. He deserves the win today. But based on his physique and size, I have to say I think he might not be the next great. He may not be the next one who can win 6+ slams. His legs/fitness might breakdown sooner than other players such as Djoko or Murray. Anyway, I wish I am wrong.