<p>Novak Djokovic dispensed with the Darth Vader mask but still proved too daunting an adversary for American John Isner when he reached the Paris Masters quarter-finals with a 6-7(5) 6-1 6-2 victory on Thursday. <br /><br /></p>.<p>The Serbian world number two, who entered the Bercy arena last year as the infamous Star Wars villain, survived a barrage of aces from the towering Isner before ruthlessly dispatching him. Roger Federer showed glimpses of his brilliant best as the 17-times Grand Slam champion outclassed German Philip Kohlschreiber 6-3 6-4 to move into the last eight. <br /><br />A day after securing his place at next week's ATP World Tour finals in London when he beat South Africa’s Kevin Anderson 6-4, 6-4, the Swiss won comfortably to set up a clash with Juan Martin del Potro, who beat him in the Basel final last week. "It wouldn't be nice to lose once more against him. If it happens I will accept it, but if I win I will have something extra for London," Federer told a news conference. <br /><br />He will be joined in London by compatriot Stanislas Wawrinka and France's Richard Gasquet, who qualified after Canadian Milos Raonic, who had a slim chance of snatching one of the last two spots, lost 7-6(15-13), 6-4 to Czech sixth seed Tomas Berdych. <br /><br />Djokovic's next opponent, Swiss seventh seed Wawrinka, dismissed Spain's Nicolas Almagro 6-3 6-2 while Gasquet was due on court later against Japan's Kei Nishikori. Wawrinka is in eighth place in the ATP Race to London while Gasquet is ninth. <br /><br />Spaniard David Ferrer continued his bid to become the first man to retain the Bercy title by demolishing France's Gilles Simon 6-2 6-3. <br /><br />Bopanna-Edouard win<br /><br />Fifth seeds Rohan Bopanna and Edouard Roger-Vasselin booked a quarterfinal berth but Leander Paes and Daniel Nestor were ousted after a straight sets defeat. Bopanna and his French partner defeated American pair of John Isner and Nicholas Monroe 7-6 (7-2), 7-5. In the other second round match, seventh seeds Paes and Nestor lost 4-6, 3-6 to Mexicans Santiago Gonzalez and American Scott Lipsky.<br /></p>
<p>Novak Djokovic dispensed with the Darth Vader mask but still proved too daunting an adversary for American John Isner when he reached the Paris Masters quarter-finals with a 6-7(5) 6-1 6-2 victory on Thursday. <br /><br /></p>.<p>The Serbian world number two, who entered the Bercy arena last year as the infamous Star Wars villain, survived a barrage of aces from the towering Isner before ruthlessly dispatching him. Roger Federer showed glimpses of his brilliant best as the 17-times Grand Slam champion outclassed German Philip Kohlschreiber 6-3 6-4 to move into the last eight. <br /><br />A day after securing his place at next week's ATP World Tour finals in London when he beat South Africa’s Kevin Anderson 6-4, 6-4, the Swiss won comfortably to set up a clash with Juan Martin del Potro, who beat him in the Basel final last week. "It wouldn't be nice to lose once more against him. If it happens I will accept it, but if I win I will have something extra for London," Federer told a news conference. <br /><br />He will be joined in London by compatriot Stanislas Wawrinka and France's Richard Gasquet, who qualified after Canadian Milos Raonic, who had a slim chance of snatching one of the last two spots, lost 7-6(15-13), 6-4 to Czech sixth seed Tomas Berdych. <br /><br />Djokovic's next opponent, Swiss seventh seed Wawrinka, dismissed Spain's Nicolas Almagro 6-3 6-2 while Gasquet was due on court later against Japan's Kei Nishikori. Wawrinka is in eighth place in the ATP Race to London while Gasquet is ninth. <br /><br />Spaniard David Ferrer continued his bid to become the first man to retain the Bercy title by demolishing France's Gilles Simon 6-2 6-3. <br /><br />Bopanna-Edouard win<br /><br />Fifth seeds Rohan Bopanna and Edouard Roger-Vasselin booked a quarterfinal berth but Leander Paes and Daniel Nestor were ousted after a straight sets defeat. Bopanna and his French partner defeated American pair of John Isner and Nicholas Monroe 7-6 (7-2), 7-5. In the other second round match, seventh seeds Paes and Nestor lost 4-6, 3-6 to Mexicans Santiago Gonzalez and American Scott Lipsky.<br /></p>