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Sony Open Results

Tuesday

At The Tennis Center at Crandon Park

Key Biscayne, Fla.

Purse: Men, $5.65 million (Masters 1000); Women, $5.43 million (Premier)

Surface: Hard-Outdoor

Singles

Men

Fourth Round

Novak Djokovic (2), Serbia, def. Tommy Robredo (16), Spain, 6-3, 7-5.

Kei Nishikori (20), Japan, def. David Ferrer (4), Spain, 7-6 (7), 2-6, 7-6 (9).

Alexandr Dolgopolov (22), Ukraine, def. Stanislas Wawrinka (3), Switzerland, 6-4, 3-6, 6-1.

Andy Murray (6), Britain, def. Jo-Wilfried Tsonga (11), France, 6-4, 6-1.

Milos Raonic (12), Canada, def. Benjamin Becker, Germany, 6-3, 6-4.

Roger Federer (5), Switzerland, def. Richard Gasquet (9), France, 6-1, 6-2.

Tomas Berdych (7), Czech Republic, def. John Isner (10), United States, 6-3, 7-5.

Rafael Nadal (1), Spain, def. Fabio Fognini (14), Italy, 6-2, 6-2.

Women

Quarterfinals

Maria Sharapova (4), Russia, def. Petra Kvitova (8), Czech Republic, 7-5, 6-1.

Serena Williams (1), United States, def. Angelique Kerber (5), Germany, 6-2, 6-2.

Doubles

Men

Quarterfinals

Michael Llodra and Nicolas Mahut (8), France, def. Feliciano Lopez, Spain, and Max Mirnyi, Belarus, 7-6 (6), 6-0.

Bob and Mike Bryan (1), United States, def. David Marrero and Fernando Verdasco (5), Spain, 6-3, 7-6 (5).

Women

Second Round

Martina Hingis, Switzerland, and Sabine Lisicki, Germany, def. Sorana Cirstea, Romania, and Anastasia Pavlyuchenkova, Russia, 6-2, 6-1.

Quarterfinals

Raquel Kops-Jones and Abigail Spears (8), United States, def. Garbine Muguruza and Carla Suarez Navarro, Spain, 1-6, 6-4, 10-5.

Ekaterina Makarova, Russia, and Elena Vesnina (2), Russia, def. Alla Kudryavtseva, Russia, and Anastasia Rodionova, Australia, 3-6, 6-3, 10-8.