Djokovic breaks Federer's record for most weeks as world number one

World number one ranked tennis player Novak Djokovic on Monday surpassed Roger Federer's record of topping the ATP Rankings for most weeks, said ATP. Djokovic reached the landmark by completing 311 weeks as world number one while Federer held onto the number one spot for 310 weeks. Djokovic reached world number one ranking for the first time in July 2011.