Federer, Nadal ousted in quarterfinals

Federer, Nadal ousted in quarterfinals

World number one Roger Federer reacts to his quarterfinal loss to Frenchman Jo-Wilfried Tsonga. AP

With the world's eight top-ranked players featuring in the quarterfinals of an ATP Tour event for the first time since official rankings began in 1973.

Frenchman Jo-Wilfried Tsonga's dramatic 7-6, 1-6, 7-6 comeback win over Swiss world number one Federer set the pace before towering Argentine Juan Martin Del Potro ended Nadal's Montreal title defence with a clinical 7-6, 6-1 win.

Apart from losing the match and the championship, the Spaniard may yet lose his world number two ranking on Monday if Briton Andy Murray, who cruised to a 6-2, 6-4 quarterfinal victory over Nikolay Davydenko of Russia, can reach Sunday's final.

Seventh-ranked Tsonga ended any chance of a dream final early in the day, coming back from 5-1 down in the third set to hand the Swiss one of his most stunning defeats. "It happens in tennis, it's never over until it's over and it showed today," Federer said.

Third seed Murray awaits Tsonga in the semifinals, the Scotsman needing just 82 minutes under a broiling Canadian sun to dismiss eighth-ranked Russian Davydenko.  A battling Nadal fought Del Potro through a marathon first set that took 78 minutes to complete and ended with the Argentine coming back from 5-2 down in the tie-break to win 7-5.

The drained Spaniard offered little resistance in a one-sided second set as Del Potro moved on to face Roddick, who booked his spot in the final four with a 6-4 7-6 win over fourth seed Novak Djokovic of Serbia. Mahesh Bhupathi and Mark Knowles eased into the semifinals of ATP Montreal Masters after scoring a 6-3, 6-4 win over the Polish pair of Mariusz Frystenberg and Marcin Matkowski.

Clijsters’ tour ends

Kim Clijsters's brilliant comeback after two years off the tour came to an end at the Cincinnati Open on Friday when she lost 6-2, 7-5 to world number one Dinara Safina in the quarterfinals.

In the semifinals, Safina will meet Italian 14th seed Flavia Pennetta of Italy, who beat unseeded Slovak Daniela Hantuchova 6-3, 6-3. Fourth seed Elena Dementieva cruised into the last four with a 6-2, 6-1 win over eighth-seeded Dane Caroline Wozniacki.

Wozniacki set up a meeting with fifth seed Jelena Jankovic, who hammered unseeded Austrian Sybille Bammer 6-0 6-3 in the night match.