How John Isner won against Key Nishikori in Miami? Part of the answer illustrated by this masterful down-the-line backhand from the American .

Another amazing point from Marius Copil against Alexander Zverev in Basel.

Watch highlights of US Open 2019 round four between Bianca Andreescu and Taylor Townsend. The Canadian teenager was too strong for the 23 years old American.

After a very good week in Indian Wells, Rafael Nadal confirm also his good form of the moment in doubles in Miami.

What an angle Svetlana Kuznetsova finds on this passing shot against Ekaterina Makarova in Miami.

Superb rally bet Victoria Azarenka and Johanna Konta on this break point in Miami.