Novak Djokovic has overtaken legendary Steffi Graf after topping the world rankings for a record-breaking 378 weeks.

Djokovic has overtaken Graf for most weeks as world No 1 after starting his 378th week at the top of the men’s rankings.

The 35-year-old Serb first became world No 1 in 2011 and has since ended the year in first place in the rankings a record seven times.

Djokovic won a record-extending Australian Open for the 10th time in January to move level with Rafael Nadal on 22 Grand Slams

Djokovic returned to world No 1 for the first time in six months by winning the Australian Open for a record-extending 10th time in January.