<p>Petkovic, ranked 23rd, played positive attacking tennis in the Florida sunshine at Key Biscayne to move into the quarterfinals with a 7-5, 3-6, 6-3 victory over the Dane. <br />Petkovic saved 12 of 17 break points against Wozniacki but the foundations of her success were an aggressive serve and subtle variations in her game. <br /><br />She resisted the temptation to try and slug it out with Wozniacki, opting instead to mix up her shots and employ a range of different speeds, then celebrating her victory with a jig she has dubbed the ‘Petko dance’. <br /><br />“Most of the players think they can overpower Caroline. I think that’s the wrong approach, because that’s where she’s most comfortable, when she can run and bring the most balls back,” Petkovic told reporters. <br /><br />“What I try to do is mix it up and to make her play, and then when I had the short ball to go for it.” <br /><br />Wozniacki lost the opening set after squandering three set points and later said she had only herself to blame. “I had so many chances in my first set... Then, just the energy level dropped a little bit and I lost the match. That’s what happens in sport,” she said. <br /><br />Russian Maria Sharapova, still working her way back from injury, eased past Australian Samantha Stosur, ranked fifth in the world, winning 6-4, 6-1. Sharapova, currently ranked 16th, has never been beaten by Stosur in seven meetings. <br /><br />Second seed Kim Clijsters’ match with Serbian Ana Ivanovic was postponed to Tuesday due to heavy rain. <br /><br />Federer, Nadal progress<br /><br />Rafael Nadal and Roger Federer remained on course for their first head-to-head clash this year after easily winning their third round matches in the men’s event. The two great rivals brushed past their opponents in straight sets to stay on track for a meeting in the semi-finals. <br /><br />Nadal, the current world number one, eased past his fellow Spaniard Feliciano Lopez 6-3, 6-3 with a ruthless display, winning 67 percent of points on first serve and committing just a handful of unforced errors. <br /><br />Federer had to work a little harder, surviving a first-set tiebreaker, but the Swiss master was able to close out for a 7-6 (7-4), 6-4 victory in one hour 44 minutes. <br /><br />Federer's next opponent is Belgian qualifier Olivier Rochus while Nadal will meet either Ukrainian Alexandr Dolgopolov or Frenchman Jo-Wilfried Tsonga. <br /><br />Paes-Bhupathi win<br /><br />Mahesh Bhupathi and Leander Paes entered the third round of the doubles event on Tuesday after a straight-set 7-6, 6-4 victory over Spaniards Marc Lopez and David Marrero.<br /><br />India’s Rohan Bopanna and his Pakistani partner Aisam-Ul-Haq Qureshi also entered the third round after getting past Slovakian Michal Mertinak and his Belgian partner Dick Norman. <br /><br />India-Pakistan pair, seeded seventh, won 7-6 (7-4), 3-6, 10-8 on Monday after being down 3-6 in the super-tiebreaker.<br /></p>
<p>Petkovic, ranked 23rd, played positive attacking tennis in the Florida sunshine at Key Biscayne to move into the quarterfinals with a 7-5, 3-6, 6-3 victory over the Dane. <br />Petkovic saved 12 of 17 break points against Wozniacki but the foundations of her success were an aggressive serve and subtle variations in her game. <br /><br />She resisted the temptation to try and slug it out with Wozniacki, opting instead to mix up her shots and employ a range of different speeds, then celebrating her victory with a jig she has dubbed the ‘Petko dance’. <br /><br />“Most of the players think they can overpower Caroline. I think that’s the wrong approach, because that’s where she’s most comfortable, when she can run and bring the most balls back,” Petkovic told reporters. <br /><br />“What I try to do is mix it up and to make her play, and then when I had the short ball to go for it.” <br /><br />Wozniacki lost the opening set after squandering three set points and later said she had only herself to blame. “I had so many chances in my first set... Then, just the energy level dropped a little bit and I lost the match. That’s what happens in sport,” she said. <br /><br />Russian Maria Sharapova, still working her way back from injury, eased past Australian Samantha Stosur, ranked fifth in the world, winning 6-4, 6-1. Sharapova, currently ranked 16th, has never been beaten by Stosur in seven meetings. <br /><br />Second seed Kim Clijsters’ match with Serbian Ana Ivanovic was postponed to Tuesday due to heavy rain. <br /><br />Federer, Nadal progress<br /><br />Rafael Nadal and Roger Federer remained on course for their first head-to-head clash this year after easily winning their third round matches in the men’s event. The two great rivals brushed past their opponents in straight sets to stay on track for a meeting in the semi-finals. <br /><br />Nadal, the current world number one, eased past his fellow Spaniard Feliciano Lopez 6-3, 6-3 with a ruthless display, winning 67 percent of points on first serve and committing just a handful of unforced errors. <br /><br />Federer had to work a little harder, surviving a first-set tiebreaker, but the Swiss master was able to close out for a 7-6 (7-4), 6-4 victory in one hour 44 minutes. <br /><br />Federer's next opponent is Belgian qualifier Olivier Rochus while Nadal will meet either Ukrainian Alexandr Dolgopolov or Frenchman Jo-Wilfried Tsonga. <br /><br />Paes-Bhupathi win<br /><br />Mahesh Bhupathi and Leander Paes entered the third round of the doubles event on Tuesday after a straight-set 7-6, 6-4 victory over Spaniards Marc Lopez and David Marrero.<br /><br />India’s Rohan Bopanna and his Pakistani partner Aisam-Ul-Haq Qureshi also entered the third round after getting past Slovakian Michal Mertinak and his Belgian partner Dick Norman. <br /><br />India-Pakistan pair, seeded seventh, won 7-6 (7-4), 3-6, 10-8 on Monday after being down 3-6 in the super-tiebreaker.<br /></p>
