London: Andy Murray played down his chances of beating Rafa Nadal on Thursday after booking his place in the last four of the ATP World Tour Finals with a 6-2, 6-2 defeat of Spain`s David Ferrer.
Murray recovered from some anxious early moments against Ferrer to reach Saturday`s semi-finals where he will play Nadal should the world number one beat Tomas Berdych on Friday in the concluding Group A matches.
However, despite beating him on their last meeting in Toronto, Murray appeared to write-off his chances should the dominant Mallorcan stand in his way.
"He`s obviously the best player in the world," Murray, who finished behind Roger Federer in Group B, told reporters. "I`ve watched his matches here. He`s been playing unbelievably well."
"I don`t seem to beat those guys in the big matches. Obviously I`m going to be playing against someone like Rafa. So it`s going to be an incredibly tough match."
"There`s not really a whole lot of room for error. But I`ll try and win. But I`m not sure I`ve got a whole lot of chance if I play against him."
Federer`s defeat of Robin Soderling meant home favourite Murray needed only to win one set against Ferrer but he made a messy start and lost the opening two games.
However, Murray reeled off the next six with some punishing groundstrokes to ensure British interest in the season-ending tournament at the weekend.
He completed a routine victory in 69 minutes to improve on his performance of last year when he missed out on the semi-finals on a games countback to Juan Martin Del Potro despite also winning two of his three group matches.
"It`s very easy to say you`ve just got to win the match," Murray said of his task against Ferrer.
"But when you know what`s at stake, you want to get off to a good start."
"You know your opponent needs to get off to a good start to win or to go through. He obviously started off a little bit better than me."
World number seven Ferrer departs having lost all three of his matches, although his hurt pride will be soothed by taking home a cheque for USD 120,000 for taking part.
"Today I have a lot of problems, physically and mentally," 2007 finalist Ferrer said. "Is difficult to play with these guys if I`m not perfect. It`s impossible."
Group A, which is led by Nadal will be decided on Friday when the Spaniard plays Berdych and Andy Roddick faces Novak Djokovic.