In Tennis, Sania Mirza and her Swiss team-mate Martina Hingis have stormed into the Women's Doubles Final of the US Open, the fourth and final Grand Slam of the season. In the semi-finals this morning, the Indo-Swiss pair defeated the Italian team of Sara Errani and Flavia Pennetta in straight sets, 6-4, 6-1.In Men's Doubles, the sixth seeded Indo-Romanian pair of Rohan Bopanna and Florin Mergea bowed out.In Men's Singles, world number two Roger Federer defeated Richard Gasquet of France to set up a semi-clash with fellow Swiss Stanislas Wawrinka. Wawrinka beat South African Kevin Anderson.World number one Novak Djokovic and defending champion Marin Cilic had set up the first semi-final.In Women's Singles, fifth seeded Czech Petra Kvitova also crashed out.The two-time Wimbledon winner was stunned in the quarterfinals last night by 26th placed Italian Flavia Pennetta.In the semi-finals, Penetta will meet world number two Simona Halep who defeated Victoria Azarenka in the other quarterfinal.The other semi-final will be played between world number one and defending champion Serena Williams and Italy's Roberta Vinci.