Novak Djokovic beats Federer to clinch ATP world title

Novak Djokovic put a firm stamp on his position as world number one with a stunning victory over Roger Federer in the ATP World Tour Finals. The Serb won 7-6 (8-6) 7-5 to add the season-ending title to his Australian Open victory and top ranking.

He needed two hours and 14 minutes to take two sets in a match of dramatic swings in momentum.

It is the second time Djokovic has won the ATP finale, following his triumph in Shanghai four years ago.

Djokovic beats Murray to clinch Shangai Masters Final

Andy Murray failed in his bid to make it a hat-trick of titles at the Shanghai Masters after losing a three-set thriller to Novak Djokovic.

In their first meeting since Murray's win in the US Open final, Djokovic triumphed 5-7 7-6 (13-11) 6-3.

Murray edged the first set, which had seven breaks of serve, with Djokovic reacting angrily by smashing a racket.

Djokovic saved five match points in the second set before taking the tie-break and breaking Murray twice in the third.