<p>Russia's Ekaterina Makarova reached the first Grand Slam semifinal of her career on Wednesday, downing former world number one Victoria Azarenka 6-4, 6-2 at the US Open.<br /><br /></p>.<p>Makarova, a left hander ranked 18th in the world, had fallen in four prior major quarterfinals.<br /><br />But she out-played two-time Australian Open champion Azarenka, who was runner-up to Serena Williams at Flushing Meadows each of the past two years but has been slowed by injury in 2014.<br /><br />Makarova will face either world number one and five-time champion Serena Williams or Italian Flavia Pennetta for a place in the final.<br /><br />Roger Federer rolled into the quarterfinals for the 10th time in 11 years on Tuesday, while experience finally got the better of youth at the year's final Grand Slam.<br /><br />Five-time champion Federer powered his way past Spain's Roberto Bautista 6-4, 6-3, 6-2, the 33-year-old raising his record on Arthur Ashe Stadium court to a dazzling 25-1.<br /><br />Facing Federer for the first time, the 26-year-old Spaniard quickly found himself 5-1 down in the opening set to the 17-time Grand Slam winner, who then eased off the gas and coasted to an unflustered straight sets win in just under two hours.<br /><br />Tomas Berdych thrashed 20-year-old Austrian Dominic Thiem 6-1, 6-2, 6-4, and Frenchman Gael Monfils schooled 23-year Bulgarian Grigor Dimitrov 7-5, 7-6 (6), 7-5.<br /><br />Monfils put aside his showman antics for a more workmanlike approach to his fourth round match and it resulted in victory over the player dubbed "Baby Fed" for his all-around game that resembles Swiss maestro Federer's. Frenchman Monfils, seeded 20th, returns to the quarter-finals for the first time since 2010 for a date with Federer.<br /><br />"He's got easy top 10 potential," said Federer of Monfils, who has yet to drop a set. "He's a great mover. He's got a wonderful serve, really, which nobody really talks about because of his athletic movement which stands out so much.”<br /><br />It was not all joy for the French contingent on Tuesday with Gilles Simon losing to big-serving Croat Marin Cilic. Cilic and Simon have played a combined 49 five-setters in their careers so it was no surprise that Tuesday's meeting between the two went the distance.<br /><br />Cilic had won a five-set marathon over Simon earlier this year at the Australian Open and it was the 14th seeded Croatian coming out on top again 5-7, 7-6 (3), 6-4, 3-6, 6-3.<br /><br />While Cilic and Simon battled it out for over four hours in the heat, Federer, Monfils, Berdych, Peng and 10th seed Caroline Wozniacki conserved energy by registering straight-sets wins.<br /><br />Chinese Shui Peng, 28, delivered a 64-minute master class to 2013 junior world number one Belinda Bencic in an unlikely quarter-final between unseeded players on Tuesday.<br /><br />Peng will next meet former world number one Wozniacki, who used her aggressive groundstroke game to near perfection in a 6-0, 6-1 victory over Italy's Sara Errani. The 10th-seeded Dane, engaging Errani in long baseline rallies roared to victory in a brisk 65 minutes at Arthur Ashe Stadium.<br /><br />Sania-Cara in semis<br /><br />India’s Sania Mirza and her Zimbabwean partner Cara Black hardly broke a sweat as they entered the US Open women's doubles semifinals after their rivals retired midway through the quarterfinal match here.<br /><br />Sania and Cara, seeded third, defeated the Kazakh-Chinese pairing of Zarina Diyas and Yi-Fan Xu 6-1, 1-0 (retd) in 45 minutes to make the last four stage. They will now face the Swiss-Italian team of Martina Hingis and Flavia Pennetta. Hingis and Pennetta upstaged fifth seeds Kveta Peschke and Katarina Srebotnik 6-4, 6-3 in their last-eight match.<br /><br />In the junior competition, India's Sumit Nagal lost 2-6, 2-6 to seventh seeded Korean Duckhee Lee. <br /><br />Results (prefix denotes seedings): Men’s singles, fourth round: 2-Roger Federer (Sui) bt 17-Roberto Bautista Agut (Esp) 6-4, 6-3, 6-2; 6-Tomas Berdych (Cze) bt Dominic Thiem (Aut) 6-1, 6-2, 6-4; 14-Marin Cilic (Cro) bt 26-Gilles Simon (Fra) 5-7, 7-6 (7/3), 6-4, 3-6, 6-3; 20-Gael Monfils (Fra) bt 7-Grigor Dimitrov (Bul) 7-5, 7-6 (8/6), 7-5. <br /><br />Women’s singles: Quarterfinals: 17-Ekaterina Makarova (Rus) bt 16-Victoria Azarenka (Bel) 6-4, 6-2; 10-Caroline Wozniacki (Den) bt 13-Sara Errani (Ita) 6-0, 6-1. </p>
<p>Russia's Ekaterina Makarova reached the first Grand Slam semifinal of her career on Wednesday, downing former world number one Victoria Azarenka 6-4, 6-2 at the US Open.<br /><br /></p>.<p>Makarova, a left hander ranked 18th in the world, had fallen in four prior major quarterfinals.<br /><br />But she out-played two-time Australian Open champion Azarenka, who was runner-up to Serena Williams at Flushing Meadows each of the past two years but has been slowed by injury in 2014.<br /><br />Makarova will face either world number one and five-time champion Serena Williams or Italian Flavia Pennetta for a place in the final.<br /><br />Roger Federer rolled into the quarterfinals for the 10th time in 11 years on Tuesday, while experience finally got the better of youth at the year's final Grand Slam.<br /><br />Five-time champion Federer powered his way past Spain's Roberto Bautista 6-4, 6-3, 6-2, the 33-year-old raising his record on Arthur Ashe Stadium court to a dazzling 25-1.<br /><br />Facing Federer for the first time, the 26-year-old Spaniard quickly found himself 5-1 down in the opening set to the 17-time Grand Slam winner, who then eased off the gas and coasted to an unflustered straight sets win in just under two hours.<br /><br />Tomas Berdych thrashed 20-year-old Austrian Dominic Thiem 6-1, 6-2, 6-4, and Frenchman Gael Monfils schooled 23-year Bulgarian Grigor Dimitrov 7-5, 7-6 (6), 7-5.<br /><br />Monfils put aside his showman antics for a more workmanlike approach to his fourth round match and it resulted in victory over the player dubbed "Baby Fed" for his all-around game that resembles Swiss maestro Federer's. Frenchman Monfils, seeded 20th, returns to the quarter-finals for the first time since 2010 for a date with Federer.<br /><br />"He's got easy top 10 potential," said Federer of Monfils, who has yet to drop a set. "He's a great mover. He's got a wonderful serve, really, which nobody really talks about because of his athletic movement which stands out so much.”<br /><br />It was not all joy for the French contingent on Tuesday with Gilles Simon losing to big-serving Croat Marin Cilic. Cilic and Simon have played a combined 49 five-setters in their careers so it was no surprise that Tuesday's meeting between the two went the distance.<br /><br />Cilic had won a five-set marathon over Simon earlier this year at the Australian Open and it was the 14th seeded Croatian coming out on top again 5-7, 7-6 (3), 6-4, 3-6, 6-3.<br /><br />While Cilic and Simon battled it out for over four hours in the heat, Federer, Monfils, Berdych, Peng and 10th seed Caroline Wozniacki conserved energy by registering straight-sets wins.<br /><br />Chinese Shui Peng, 28, delivered a 64-minute master class to 2013 junior world number one Belinda Bencic in an unlikely quarter-final between unseeded players on Tuesday.<br /><br />Peng will next meet former world number one Wozniacki, who used her aggressive groundstroke game to near perfection in a 6-0, 6-1 victory over Italy's Sara Errani. The 10th-seeded Dane, engaging Errani in long baseline rallies roared to victory in a brisk 65 minutes at Arthur Ashe Stadium.<br /><br />Sania-Cara in semis<br /><br />India’s Sania Mirza and her Zimbabwean partner Cara Black hardly broke a sweat as they entered the US Open women's doubles semifinals after their rivals retired midway through the quarterfinal match here.<br /><br />Sania and Cara, seeded third, defeated the Kazakh-Chinese pairing of Zarina Diyas and Yi-Fan Xu 6-1, 1-0 (retd) in 45 minutes to make the last four stage. They will now face the Swiss-Italian team of Martina Hingis and Flavia Pennetta. Hingis and Pennetta upstaged fifth seeds Kveta Peschke and Katarina Srebotnik 6-4, 6-3 in their last-eight match.<br /><br />In the junior competition, India's Sumit Nagal lost 2-6, 2-6 to seventh seeded Korean Duckhee Lee. <br /><br />Results (prefix denotes seedings): Men’s singles, fourth round: 2-Roger Federer (Sui) bt 17-Roberto Bautista Agut (Esp) 6-4, 6-3, 6-2; 6-Tomas Berdych (Cze) bt Dominic Thiem (Aut) 6-1, 6-2, 6-4; 14-Marin Cilic (Cro) bt 26-Gilles Simon (Fra) 5-7, 7-6 (7/3), 6-4, 3-6, 6-3; 20-Gael Monfils (Fra) bt 7-Grigor Dimitrov (Bul) 7-5, 7-6 (8/6), 7-5. <br /><br />Women’s singles: Quarterfinals: 17-Ekaterina Makarova (Rus) bt 16-Victoria Azarenka (Bel) 6-4, 6-2; 10-Caroline Wozniacki (Den) bt 13-Sara Errani (Ita) 6-0, 6-1. </p>