<p>Roger Federer held off local wildcard Ryan Harrison to set up a third-round clash against twice former Sony Ericsson Open champion Andy Roddick and Serena Williams served her way into the fourth round in Miami on Saturday. <br /><br /></p>.<p>While men's number one Novak Djokovic and women's second-ranked Maria Sharapova progressed easily, former number one and twice Miami winner Kim Clijsters was eliminated at the Premier-level event. <br /><br />Clijsters fought hard and survived six match points before falling to fellow Belgian Yanina Wickmayer 6-4, 7-6 in their third round clash. <br /><br />Australia's US Open champion Samantha Stosur avoided an early exit by storming back after falling a set and 4-2 down to beat South African Chanelle Scheepers 2-6, 7-5, 6-2. <br />Federer, who has won 40 of 42 matches and six tournament titles since the 2011 US Open semifinals, led his 19-year-old opponent 5-2 in the second set before Harrison extended him to a tiebreaker taken 7-3 by the Swiss for a hard-earned 6-2, 7-6 win.<br /> <br />Roddick lost only nine points on serve and thundered down 10 aces to beat Luxembourg's Gilles Muller 6-3, 6-2. Djokovic prevailed over Marcos Baghdatis 6-4 6-4, subduing the Cypriot without the loss of a set for the first time in their last six meetings. <br />American Williams, the 10th seed, belted eight aces in an overpowering 6-2. 6-1 rout of 21st seed Roberta Vinci of Italy. "I played okay" said Williams. "I can definitely do better but I haven't played a lot,’’ she added. <br /><br />Williams, whose five Miami triumphs tie her with Steffi Graf for the record, said she was still hungry for more. "I need trophies," she said.<br /><br />Second seed Sharapova advanced to the fourth round with a 6-4, 6-2 win over American qualifier Sloane Stephens, while fourth-seeded Caroline Wozniacki beat Czech Petra Cetkovska 6-3, 7-5. <br /><br />Also coming through on Saturday was eighth-seeded Li Na of China, who won the last four games of each set to beat another Czech, Iveta Benesova, 7-5, 6-2. <br /><br />Bhupathi-Bopanna win<br /><br />Indian pair of Mahesh Bhupathi and Rohan Bopanna made it to the second round of men’s douibles, defeating Austria’s Jurgen Melzer and Briton Jamie Murray 7-5, 6-3.<br />Sania Mirza and her Russian partner Elena Vesnina lost to Anastasia Pavlyuchenkova of Russia and Czech Republic’s Lucie Safarova 6-1, 1-6, 9-11 in the first round. <br /><br />Pavlyuchenkova and Safarova took an hour and six minutes to down Sania-Vesnina.</p>
<p>Roger Federer held off local wildcard Ryan Harrison to set up a third-round clash against twice former Sony Ericsson Open champion Andy Roddick and Serena Williams served her way into the fourth round in Miami on Saturday. <br /><br /></p>.<p>While men's number one Novak Djokovic and women's second-ranked Maria Sharapova progressed easily, former number one and twice Miami winner Kim Clijsters was eliminated at the Premier-level event. <br /><br />Clijsters fought hard and survived six match points before falling to fellow Belgian Yanina Wickmayer 6-4, 7-6 in their third round clash. <br /><br />Australia's US Open champion Samantha Stosur avoided an early exit by storming back after falling a set and 4-2 down to beat South African Chanelle Scheepers 2-6, 7-5, 6-2. <br />Federer, who has won 40 of 42 matches and six tournament titles since the 2011 US Open semifinals, led his 19-year-old opponent 5-2 in the second set before Harrison extended him to a tiebreaker taken 7-3 by the Swiss for a hard-earned 6-2, 7-6 win.<br /> <br />Roddick lost only nine points on serve and thundered down 10 aces to beat Luxembourg's Gilles Muller 6-3, 6-2. Djokovic prevailed over Marcos Baghdatis 6-4 6-4, subduing the Cypriot without the loss of a set for the first time in their last six meetings. <br />American Williams, the 10th seed, belted eight aces in an overpowering 6-2. 6-1 rout of 21st seed Roberta Vinci of Italy. "I played okay" said Williams. "I can definitely do better but I haven't played a lot,’’ she added. <br /><br />Williams, whose five Miami triumphs tie her with Steffi Graf for the record, said she was still hungry for more. "I need trophies," she said.<br /><br />Second seed Sharapova advanced to the fourth round with a 6-4, 6-2 win over American qualifier Sloane Stephens, while fourth-seeded Caroline Wozniacki beat Czech Petra Cetkovska 6-3, 7-5. <br /><br />Also coming through on Saturday was eighth-seeded Li Na of China, who won the last four games of each set to beat another Czech, Iveta Benesova, 7-5, 6-2. <br /><br />Bhupathi-Bopanna win<br /><br />Indian pair of Mahesh Bhupathi and Rohan Bopanna made it to the second round of men’s douibles, defeating Austria’s Jurgen Melzer and Briton Jamie Murray 7-5, 6-3.<br />Sania Mirza and her Russian partner Elena Vesnina lost to Anastasia Pavlyuchenkova of Russia and Czech Republic’s Lucie Safarova 6-1, 1-6, 9-11 in the first round. <br /><br />Pavlyuchenkova and Safarova took an hour and six minutes to down Sania-Vesnina.</p>
