Roger Federer hits perfect backhand down the line against Radu Albot in Miami.

Stan Wawrinka turns defense into attack against Filip Krajinovic in Miami.

Superb point from Hsieh Su-Wei who waits until she finds the chink and rushes in against Osaka in Miami.

Incredible defense from Albert Ramos-Vinolas who concludes with a perfect laces backhand passing shot against Lucas Pouille at Miami

Watch Nick Kyrgios in his works against Alexander Bublik in Miami, or how he escaped danger on his serve at the end of the first set.