Wonderful rally between Petra Kvitova and Ashleigh Barty in Miami quarterfinals.

What a touch from Tommy Haas on this drop shot against Roger Federer on the grass of Stuttgart.

Roger Federer crushes a superb forehand winner against Borna Coric in Rome.

Bianca Andreescu delivers splendid drop shot againsy Garbine Muguruza in Indian Wells.

Superb half-volley back to the net from Bethanie Mattek-Sands against Anastasia Pavlyuchenkova in Miami.

Flashback on the 2012 Australian Open semi final between Roger Federer and Rafael Nadal. Their last meeting in Grand Slam before the 2014 semi final.