Christina McHale and Madison Keys won the opening singles rubbers to give the United States a commanding 2-0 lead in their Fed Cup World Group play-off tie against Australia on Saturday.
Eight-time champion Rafael Nadal saved 15 of 17 break points, and Andy Murray rallied from a set and 3-0 down as both advanced to the Monte Carlo Masters quarterfinals on Thursday.
Roger Federer made a flawless comeback after two and a half months away, as the Swiss advanced over Guillermo Garcia-Lopez 6-3, 6-4 on Tuesday to power into the third round of the Monte Carlo Masters.
Venus Williams dropped out of the Volvo Car Open on Thursday, losing to Yulia Putintseva of Kazakstan 7-6 (5), 2-6, 6-4.
World No. 1 Novak Djokovic surpassed Roger Federer as the highest-earning player in ATP Tour history on Sunday after capturing a third consecutive Miami Open crown with a 6-3, 6-4 victory over Japan's Kei Nishikori.
Two-time Australian Open champion Victoria Azarenka, who missed much of the past two seasons with injuries, is making up for lost time, winning her third title of the year Sunday at the WTA Miami Open.
World number one and defending champion Novak Djokovic will face Japan's Kei Nishikori in the ATP and WTA Miami Open final after straight-set triumphs Friday in which both were tested.
Kei Nishikori saved five match points to advance into the semifinals of the ATP and WTA Miami Open on Thursday, outlasting Gael Monfils 4-6, 6-3, 7-6 (7/3).
Victoria Azarenka was well on her way to victory Wednesday when she drew a code violation for chastising herself too colorfully, and she later angrily jabbed at her eyes with two fingers as if to say, "Watch the ball."
Novak Djokovic rolled his eyes after a backhand found the net, shrugged after an early barrage of errors and even heard the crowd at times pulling for his opponent.