PARIS (AP) — Rafael Nadal and Novak Djokovic overcame big servers Thursday to reach the Paris Masters quarterfinals.
Nadal beat last year's runner-up, Jerzy Janowicz, 7-5, 6-4, and Djokovic rallied from a set down to top John Isner 6-7 (5), 6-1, 6-2.
Roger Federer, defending champion David Ferrer, Juan Martin del Potro, Tomas Berdych, Stanislas Wawrinka and Richard Gasquet also won their third-round matches.
The tournament has turned into a rehearsal for the ATP World Tour Finals, with the eight quarterfinalists also the eight players who qualified for the London tournament next week. Wawrinka and Gasquet grabbed the last two spots at the season ending-event when Berdych eliminated Milos Raonic of Canada 7-6 (3), 6-4.
Nadal broke for a 6-5 lead before whipping a forehand winner down the line to take the first set.
The top-seeded Spaniard and Janowicz traded breaks early in the second set before the Pole double-faulted to hand Nadal a 3-2 lead. The U.S. Open champion won when Janowicz's forehand sailed long.
Nadal will face Frenchman Gasquet, a 6-3, 6-2 winner over Japan's Kei Nishikori.
Djokovic couldn't find a breakthrough in the first set as Isner saved six break points to force the tiebreaker and won it when Djokovic's backhand sailed wide.
The second-seeded Serb raised his game in the second set, making only two unforced errors and breaking Isner twice.
"I just needed to be very tough mentally and just believe I can make a break," Djokovic said. "I knew as soon as I make a break I'm going to start playing better and relaxed in a way, so that's what happened."
Djokovic won the last five games of the match, finishing off the American with a backhand volley.
Djokovic stretched his winning streak to 14 matches after taking the China Open and the Shanghai Masters titles in October.
"In China, I have had probably the best two weeks of the year, except at the beginning of the year, so it gives me a lot of confidence," Djokovic said. "I feel that I'm back mentally where I need to be, and hopefully I can maintain this winning streak and I can kind of keep on playing better and better."