Federer Aims to Topple Rafael Nadal from Number One Spot in Rotterdam Unknown 01:17 IFTTT, Top Sports News- News18.com Roger Federer announced on Wednesday that he will play in next week's ATP event in Rotterdam, where a run to the semi-finals would make him the oldest-ever world number one. from Top Sports News- News18.com http://ift.tt/2EahGWD via IFTTT Share this Share on FacebookTweet on TwitterPlus on Google+