Novak Djokovic’s ATP Finals win on Sunday rubber-stamped him as the year-end world number one for a record eighth time and took him to 400 total weeks at the top of the rankings.
Here, the PA news agency looks at how his record compares to the greats of the game. Djokovic already had more year-end number one rankings than any other male player, with his eighth meaning he now matches the record set by Steffi Graf on the WTA Tour.
The Serbian finished both 2011 and 2012 top of the pile, with another pair back to back in 2014 and 2015. Andy Murray and Rafael Nadal interrupted his dominance in 2016 and 2017 respectively but Djokovic was back on top in 2018, 2020, 2021 and now this year.
Pete Sampras is his nearest challenger on the ATP Tour with six year-end number one rankings, all in successive years from 1993 to 1998, with five each for Jimmy Connors, Roger Federer and Nadal.