Australian Open: World number one Iga ?wi?tek advances to third round of Women's Singles

World number one Iga ?wi?tek has advanced to the third round of Women's Singles in the Australian Open. The reigning French Open and U.S. Open champion defeated Camila Osorio of Colombia 6-2, 6-3 in the second round in Melbourne on Wednesday. Third-seeded Jessica Pegula also progressed to the 3rd round beating Aliaksandra Sasnovich  6-2, 7-6. However two-time major champion Petra Kvitová made an early exit from the Australian Open. She went down in straights sets to unseeded Anhelina Ka...