Roger Federer, The Williams Sisters, Nikolay Davydenko, & Novak Djokovic all advance to the Australian Open Quarterfinals.

Serena Williams of the United States, she blasted Samantha Stosur of Australia 6-4 6-2. Stosur defeated Serena the last time they played in the quaterfinals at the Bank of the West Classic in Stanford California. Serena’s opponent in the quarterfinals will be Victoria Azarenka of Belarus, she defeated Vera Zvonareva of Russia 4-6 6-4 6-0.

Venus Williams regrouped to defeat Francesca Schivanone of Italy 3-6 6-2 6-1. Li stunned the number four women’s seed Caroline Wozniacki of Denmark 6-4 6-3 in straight sets. Venus will face Li in the quarterfinals.

Meanwhile, Roger Federer of Switzerland destroyed Lleyton Hewitt of Australia 6-2 6-3 -6-4 in straight sets. Now Roger has defeated Lleyton fifteen times in a row. Roger leads their head to head series 17-7. Nikolay Davydenko of Russia espaced in a tough five set win over Fernando Verdasco of Spain 6-2 7-5 4-6 6-7 6-3 he will face Roger in the quarterfinals.

Novak Djokovic of Serbia he is quietly moving through his section of th draw he brushed aside Lukaz Kubot  of Poland 6-1 6-2 7-5. Djokoivc next opponent will be Jo Wilfried Tsonga of France he defeated Nicolas Almagro of Spain 6-3 6-4 4-7 6-7 9-7.