Andy Murray seals world no 1 spot after beating Novak Djokovic in straight sets

Andy Murray beat Novak Djokovic in straight sets in the World Tour Final - sealing his position as world number one for the rest of 2016.

The Wimbledon champion, who shot to the top of the world rankings a fortnight ago, would have been knocked off his spot if Djokovic had won.

It is the fifth title in a row the Scotsman has won, bringing his winning run to 24 matches.

Speaking at the O2 Arena in London, Murray, 29, said: "Obviously it's a very special day.

"Playing against Novak in a match like this, we've played grand slam finals, Olympics - it's been a tough rivalry.

"I've lost many of them - I'm very happy I managed to win today.

"To finish the year number one is something I never expected."