Swiss tennis star Roger Federer has become the first to remain at the top of the men's world rankings for 161 consecutive weeks.
Federer surpasses American tennis great Jimmy Connors, who was number one in the world for 160 weeks from July 1974 to August 1977.
Roger has been the men's world number one tennis player since February 2, 2004. He won his 10th career Grand Slam championship last month at the Australian Open in Melbourne.
The 25-year-old Federer says the world-ranking record is one of the biggest he has broken in his career. He says his next goal is to match Sweden's Bjorn Borg with five straight victories at Wimbledon. Federer, with four consecutive Wimbledon crowns, will have the opportunity in July.
Monday, Federer will try to extend his career-best 36-match winning streak at a tournament in Dubai.
