Federer Tsonga Australian Open

Federer Tsonga Australian Open, Melbourne, Australia:  Roger Federer notched a four-set win over Nikolay Davydenko, while Jo-Wilfried Tsonga upset Novak Djokovic in quarterfinal action at the Australian Open.

Federer captured a 2-6, 6-3, 6-0, 7-5 victory at Rod Laver Arena, while Tsonga shook off a 2-1 set deficit to win 7-6 (8), 6-7 (5), 1-6, 6-3, 6-1.

Federer outlasted Davydenko in just over 2 1-2 hours to reach the semifinals of a major for a remarkable 23rd straight time.

Federer, who snapped a two-match skid to Davydenko, will play the winner of the Andy Murray-Marin Cilic match.

Tsonga, meanwhile, came in as the No. 10 seed, while Djokovic was No. 3.

On the women’s side, Serena Williams watched sister Venus fall to Na Li in the quarterfinals.

Serena moved on to the semifinals with a 4-6, 7-6, 6-2 win over Victoria Azarenka.