Four quarterfinals of Masters of Miami are determined, the second 1000 points of the year.

Juan-Martin Del Potro defeated 2-0 with 6-4, 6-2, Serbian Krajinovic in a duel which was dominated by the Argentinian. In the quarterfinals Del Potro will face Canadian Raonic, who passed the same result 2-0 (6-3, 6-4) Chardy Frenchman.

Carreno Busta won the same result, 2-0, against Verdascos and in the quarter-finals will find Anderson, who triumphed 2-0 clean with Tiafoe.

Avanc also Zverev, who defeated in two sets, with the same score 6-4, Kyrgios, who was considered a favorite to win in Miami. German talent will collapse in the quarterfinals with Coric, who passed 2-1 with Shapovalov sets.

The latest couple is Chung-Isner. Korea was forced to score 2-0 Sousas, while the US eliminated 2-0 by Marin Cilic.