Serena Williams was ousted from the Family Circle Cup on Tuesday, shocked 6-4, 6-4 by Jana Cepelova of Slovakia in the second round.
Roger Federer squandered a big lead and lost to No. 20-seeded Kei Nishikori 3-6, 7-5, 6-4 Wednesday night in the quarterfinals of the Sony Open.
Serena Williams extended her winning streak against Maria Sharapova to 14 matches with a 6-2, 7-6 (7) semifinal victory Friday to earn a shot at back-to-back Brisbane International titles.
Victoria Azarenka overcame a shaky serve and another case of the nerves to move into the Brisbane International final with a 1-6, 6-3, 6-4 win over former No. 1-ranked Jelena Jankovic on Friday.
Every point mattered for Maria Sharapova in her competitive comeback from injury, even in a first-round match in the season-opening tournament.
Sloane Stephens will join former champion John Isner on the U.S. team for the 2014 Hopman Cup, the annual international mixed-team tennis tournament.
Unseeded Lara Arruabarrena of Spain advanced to the second round of the Korea Open by beating fifth-seeded Elina Svitolina of Ukraine 7-5, 2-6, 6-4 Monday.
James Blake upset No. 16 seed Jerzy Janowicz 6-1, 7-5 in the first round of the Western & Southern Open on Monday.
Lourdes Dominguez Lino beat Anabel Medina Garrigues 6-1, 6-1 in an all-Spanish match in the first round of the Swedish Open.
Top-seeded Sara Errani beat Barbora Zahlavova Strycova at the Italiacom Open again, this time to reach the quarterfinals on Wednesday.
Second-seeded Roberta Vinci struggled past qualifier Giulia Gatto-Monticone 7-6 (6), 6-3 in the first round of the Italiacom Open on Tuesday.
Second-seeded Stanislas Wawrinka beat Paolo Lorenzi 6-3, 7-6 (8) Wednesday to advance to the quarterfinals of the Topshelf Open on the grass courts of Rosmalen.
Defending French Open champion Maria Sharapova needed only 54 minutes to advance Monday, beating Hsieh Su-wei 6-2, 6-1 in the first round, while former top-ranked player Caroline Wozniacki ended a five-match losing streak by defeating Laura Robson.
Roger Federer was ousted by Kei Nishikori of Japan with a 6-4, 1-6, 6-2 loss Thursday in the third round of the Madrid Open.
Venus Williams has withdrawn from the Madrid Open because of back problems.