Former world No.1 Marat Safin picks Novak Djokovic to win the ATP World Tour Finals at the 02 Arena in London, which starts on Sunday.
"It looks like Djokovic can’t lose a match at the moment when he’s playing well," said Safin, who will play the BNP Paribas Zurich Open on the ATP Champions Tour next February. "Djokovic has more experience now than ever and he has great fitness. [Rafael] Nadal is going to be tough but I think Djokovic and also [Roger] Federer are the ones to beat because it’s indoors. Of course Nadal is always dangerous but I believe in Djokovic. Andy Murray? He is a great player, a smart player and I respect him, but I don't see much hope for him (at this event). Sorry."
Thomas Muster, the 1995 French Open champion, picked Federer or Murray.
"It's hard to say but I like Roger Federer and Murray," said Muster. "We'll have to see how Djokovic is doing health-wise and Nadal hasn't played as many matches as the other guys leading up to London, so I'd probably pick Federer or Andy Murray."