Roger Federer fires two huge backhands against Juan Martin Del Potro in Shanghai.

Highlights of Alex De Minaur's win against Alexander Zverev in United Cup semifinals in Sydney.

Diego Schwartzman's sweet timing to fire back this wonderful backhand winner against Kei Nishikori in Rome.

Highlights of the Serena Williams over Maria Sharapova victory in the 2012 WTA Championships final in Istanbul. (2012-10-28)

Jack Sock huge forehand return in double at London's ATP Finals.