Federer Officially Replaces Rafael Nadal as World No.1 Unknown 01:12 IFTTT, Top Sports News- News18.com Roger Federer officially returned to world number one as the latest ATP rankings were released on Monday, replacing old rival Rafael Nadal at the summit. from Top Sports News- News18.com http://ift.tt/2BCzjMm via IFTTT Share this Share on FacebookTweet on TwitterPlus on Google+