Djokovic, Nadal into quarters; Federer ousted in Shanghai

Shanghai, China ( - Top seeds Novak Djokovic and Rafael Nadal moved into the quarterfinals, while former world No. 1 great Roger Federer suffered a third-round upset Thursday at the $3.85 million Shanghai Masters tennis event.

The reigning Shanghai champion and former world No. 1 Djokovic drubbed Italian Fabio Fognini 6-3, 6-3, while the second-seeded, newly-crowned No. 1 Nadal beat Argentine Carlos Berlocq 6-1, 7-6 (7-5) on the hardcourts at Qizhong Forest Sports City Arena.

The fifth-seeded 2010 Shanghai runner-up Federer succumbed to oft-injured former top-10 performer Gael Monfils, 6-4, 6-7 (5-7), 6-3, on Day 5.

"[It was] one of those matches that could have gone either way," said Federer. "I think I was a little lucky in the second set to get back, to be quite honest. I played a solid tiebreak.

"I had chances early on in the third set I think to make something happen. He kind of recovered, then started to serve a bit better again towards the end of the third set, which made it difficult for me. It's a bit of an up and down performance for me."

The struggling Federer, who hasn't reached a semifinal since mid-July, lost to a player outside the top 20 for the fifth time in his last six tournaments.

Monfils is now 2-6 lifetime against the 32-year-old 17-time Grand Slam king Federer.

"It's a good win for me," said Monfils. "I feel a bit sorry for him because I know he's running for London. But it's tennis. He's going to have more opportunity those weeks coming up."

Other big upsets came when German Florian Mayer doused third-seeded Spaniard and 2011 Shanghai runner-up David Ferrer 6-4, 6-3 and 15th-seeded Spaniard Nicolas Almagro took out fourth-seeded Czech slugger Tomas Berdych 6-7 (6-8), 6-3, 7-6 (7-4).

Also on Thursday, sixth-seeded Juan Martin del Potro advanced via walkover when sixth-seeded Tommy Haas was unable to go because of a back injury, while seventh-seeded Jo-Wilfried Tsonga topped 12th-seeded Japanese Kei Nishikori 7-6 (7-5), 6-0 and eighth-seeded Stanislas Wawrinka bested 10th- seeded Canadian Milos Raonic 7-6 (7-2), 6-4. Raonic was last week's Tokyo runner-up to del Potro and titled in Bangkok two weeks ago.

Friday's quarterfinals in Shanghai will pit the Australian Open champion and U.S. Open and Wimbledon runner-up Djokovic against Monfils, the 2009 Shanghai runner-up Nadal versus Wawrinka, the former U.S. Open champion del Potro against Almagro, and Tsonga versus Mayer.

Djokovic defeated then two-time reigning champion Andy Murray in last year's Shanghai finale. Djokovic beat the U.S. and French Open champion Nadal in last week's final at the China Open in Beijing.

This week's champion will collect $730,000.