Raonic withdrawal means Andy Murray is the new World No 1

It's the first time he has reached the pinnacle of the rankings

Andy Murray, Rio 2016

Andy Murray, of England, smiles as he holds up his gold medal at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Sunday, Aug. 14, 2016. (AP Photo/Charles Krupa)

Andy Murray is the World No 1 in Men's tennis for the first time in his career.

His ascension to the top of the rankings comes after Milos Raonic withdrew from their Paris Masters semi-final, giving Murray the place he needed in the final.

Previous incumbent Novak Djokovic's surprise quarter-final exit to Marin Cilic had opened the door for Murray to overtake him at the top of the rankings. 

A win over Raonic to qualify for the Paris final was enough to seal the necessary points but the Canadian's exit means Murray achieved that without having to play a match.

Raonic, who Murray beat in this year's Wimbledon final to seal the third Grand Slam title of his career, withdrew due to injury.

"Yesterday, I started feeling some pain in my legs. I didn't think too much of it at that point. This morning I had trouble waking up and getting out of bed and they found that I have a grade one tear in my quad. So unfortunately I'm not able to compete," said Raonic.

Thus 2016 has been a memorable year for Murray. The Scottish tennis player won Wimbledon again, reached World No 1 status and retained his Olympic gold medal for Great Britain at Rio 2016, four years on from his London 2012 triumph.