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

Novak Djokovic do it like Mansour Bahrami against the young Kyle Edmund in Miami. Ball right in the pocket.

Frances Tiafoe couldn't hit a drop volley better than this against Denis Shapovalov in Miami.

Amazing drop volley from Ivan Dodig in double with Marcel Granollers against Marcelo Melo and Lukasz Kubotat at the ATP Finals in London.

Highlights of the amaizing battle between Alexander Zverev and Tomas Berdych in 2016 Davis Cup first round between Germany and Czech Republic.