The ATP World Finals tournament to end the year in London will be missing some star power, as Andy Murray was forced to pull out of the tournament as he deals with recovering from his back surgery procedure that kept him out of play for a while.

Novak Djokovic and new number one ranked star Rafael Nadal will be the top favorites for the tournament, which will have the top eight players in the world going at it and it is possible Roger Federer will be there as well.

Wimbledon champion Andy Murray has withdrawn from next month's World Tour Finals in London as he continues his recovery from back surgery.

"I'm really disappointed not to be playing this year. I love playing in front of my home crowd, it's a great atmosphere," the British world number three said in a statement on Wednesday.

Murray had surgery last month to clear up a long-standing back problem.

Rafael Nadal, Novak Djokovic and David Ferrer have already secured spots at the season-ending event, which is fought out between the top eight qualified players. The tournament runs from November 4-11.

(Reuters Quotes)