Roger Federer, 36, aims to become oldest world No.1 tennis player

Roger Federer will play in the ATP 500 event in Rotterdam  - if he makes it to semi-finals, he will have a chance to become the oldest world number one tennis player in history.

Roger Federer Serves Up the Sabbath - Breaking Matzo

Roger Federer winning US Open would be a Cinderella story to rival

Roger Federer says he is retiring from pro tennis at age 41

How Roger Federer could wipe Andre Agassi from record books as

Roger Federer is 36 and No. 1, and he may be playing his best

Roger Federer, world's oldest No.1 tennis star, has a new target

The career of Roger Federer: 20 key moments

Roger Federer - Wikipedia

COMMENTARY Australian Open Title Cements Federer's Timeless Legacy