Federer has commented about the surface too. I think when the two most dominant players are uneasy about the court, that is something.......... Here is the link to an article posted today making reference to his comments.
Federer fretting over injury
By Mark Hodgkinson in Shanghai
Roger Federer had previously been experiencing "a strange feeling" during his training sessions here, and yesterday the Swiss admitted that his recent ankle injury may prevent him from defending his title at the Masters Cup, a tournament that is supposed to be an exhibition of the finest that tennis can offer.
A strong hint of vulnerability from the world No 1 was to be expected. At one stage there was a fear that he would not even make it to China. Federer damaged ligaments in his right ankle after a training mishap four weeks ago, he was left walking on crutches and forced to cancel three tournaments on his schedule. His opening group match will be his first competitive tennis for more than a month - he has not played since defeating Scotland's Andy Murray in the Bangkok final.
Worryingly for locals and tournament officials, who have already lost three headline names in Marat Safin, Lleyton Hewitt and Andy Roddick, Federer was yesterday talking of how "health comes before success". The last thing the Chinese need now is Federer hobbling and shuffling away from the Qi Zhong Stadium, a futuristic, 15,000-seat arena that has been built specially for the Masters Cup. Federer is meant to be the star of the show, which starts on Sunday.
Federer, who is attempting to win his third successive Masters Cup title, said: "I don't know the chances of me winning here because of my foot. I'm here to defend the title but health comes before success. I just hope that I can play my first match without any pain."
Federer said he was not pleased with the type of hard court that has been laid at the Qi Zhong Stadium. "I am not a huge fan of the surface. It makes me feel strange, and it just doesn't take my spin the way I would like it to. I hope I will get comfortable with it after a few more practice sessions," said Federer
, who has been accompanied by his part-time coach, Australian Tony Roche.