Roger Federer wins ATP World Tour Finals at O2 Arena in London . , Jo sapped every last energy out of me today , '' Federer said . Federer beats Jo-Wilfried Tsonga of France in his 100th career final . TL;DR Max Mirnyi and Daniel Nestor win doubles title .
Roger Federer wins ATP World Tour Finals at O2 Arena in London . Federer beats Jo-Wilfried Tsonga of France in his 100th career final . TL;DR Max Mirnyi and Daniel Nestor win doubles title .