by A.P.
Novak Djokovic says it has taken “a lot of blood, sweat and tears” to break Roger Federer’s record of 310 weeks ranked as world number one.
The 33-year-old Serb set the record on Monday for most weeks at number one in the 48-year history of the ATP rankings.
“My family have supported me for day one,” he told BBC World Service.
Djokovic won his 18th Grand Slam singles title and his ninth Australian Open crown in Melbourne last month.
Djokovic, whose longest continuous run at the top was 122 weeks between July 2014 and November 2016, paid tribute to the 39-year-old Federer, who is competing at this week’s Qatar Open, his first tournament since the Australian Open in 2020.