PARIS: Roger Federer has topped the ATP end-of-year world rankings for the fifth time during his career having ceded the position last year to Rafael Nadal. The 28-year-old Swiss star, who won the French Open and Wimbledon during the summer, was world No 1 previously from 2004 to 2007 and he is now level with Jimmy Connors and one behind the all-time best set by Pete Sampras from 1993 to 1998. Federer has also topped the rankings for 259 weeks and is closing in on the record of 286 weeks held by Sampras.