Serb Novak Djokovic beat the world no.3, his friend and part-time hitting partner Scot Andy Murray 4-6, 6-3, 7-5 in 2 hours and 35-minutes in a Group A clash of the Barclays ATP World Tour Finals, bec

David Ferrer won his World Tour Finals opener in London, beating Argentina's Juan Martin del Potro in a three-set see-saw.

The World No.5, who is enjoying his best-ever season with seven titles, had

With an opening-round loss, poor fitness and a father reportedly ill in a Serbian hospital with respiratory problems, Novak Djokovic on Wednesday appeared to be slightly unsure of his immediate tennis