Flustered Federer loses ATP Finals opener to Nishikori ...

Poulos and Canberra International nominated at Newcombe Medal night ...

Czech Republic beats U.S. in Fed Cup final ...

Naomi Osaka headed for big money with Japan, global appeal ...

Players' towel habits can be ridiculous - Zverev ...

De Minaur through to Next Gen semis ...

Inexperienced U.S. faces weakened Czechs ...

Nadal out of ATP Finals stomach; also awaits ankle surgery ...

Khachanov shocks Djokovic to win Paris Masters crown ...

Djokovic beats Federer in epic Paris semi ...

Nishikori to replace Del Potro at ATP Finals ...

Pliskova pulls out of Czech team for Fed Cup final v U.S. ...

Garbine Muguruza reaches semifinals at WTA Elite Trophy ...

Khachanov eliminates Sock to reach Paris Masters semifinals ...

Djokovic to reclaim top spot as Nadal withdraws from Paris Masters ...

Djokovic reaches Paris Masters quarterfinals; Cilic wins ...

Shapovalov withdraws from Next Gen Finals ...

Raonic withdraws from Paris Masters with elbow injury ...

Djokovic beats Sousa at Paris Masters ...

Federer turned down Saudi Arabia event invite ...

Svitolina claims WTA Finals trophy after enthralling win over Stephens ...

Federer beats Copil to win 99th career title in Basel ...

Djokovic aiming to take No. 1 ranking from Nadal in Paris ...

Video Review system to trial at Next Gen Finals ...

WTA dedicates No. 1 trophy to honor Chris Evert ...