Andy Murray will finish 2016 on top of the world rankings after an imperious 6-3, 6-4 victory over Novak Djokovic clinched his first ATP Tour Finals title on Sunday. Murray had ended Djokovic's 122-week reign as world number one two weeks ago and his triumph in their winner-takes-all clash at London's O2 Arena stopped the Serb regaining pole position.

Soaking up the acclaim from a star-studded 17,000 sell out crowd including actors Jude Law, Kevin Spacey and Woody Harrelson, Murray said: "I'm very happy to win and to be world number one is very special. It's something I never expected.

The 29-year-old is the 17th man to hold the prestigious year-end number one berth since the inception of the ATP rankings in 1973.

He is the first player other than Djokovic, Roger Federer or Rafael Nadal to earn the honour since Andy Roddick in 2003.