Novak Djokovic claimed a share of yet more history on Monday as he started his 377th week as world number one.
Djokovic has won 22 major titles, the joint-most among men, and has long since held the record for the most weeks at the top of the ATP rankings.
His nearest rival on the men's tour – since the rankings were introduced in 1973 – is the now retired Roger Federer, who spent 310 weeks in top spot.
But Djokovic has also matched Steffi Graf, the WTA leader, in making it to 377 weeks.
377 - Novak Djokovic has equalled Steffi Graf as the player with the most weeks as the number #1 in the world (377), since the ATP rankings began in 1973. Eternity.@atptour @ATPMediaInfo @WTA_insider @WTA pic.twitter.com/lIkExXo9CZ— OptaAce (@OptaAce) February 20, 2023
Graf was the women's number one 45 weeks longer than second-placed Martina Navratilova (332), with Serena Williams in third (319).
The WTA rankings began in 1975.