Shocks at the US Open Tennis continue. After the exits of top players like Simona Halep, Petra Kvitova and Agniezska Radwanksa, world number six Maria Sharapova crashed out of the fourth and final Grand Slam of the season last night. In the Women's Singles pre-quarterfinals, tenth placed Caroline Wozniacki stunned fifth seed Sharapova with a 6-4, 2-6, 6-2 victory.In the Men's Singles, fourth seeded Spaniard David Ferrer made an exit after losing to Frenchman Gilles Simon, 3-6, 6-3, 1-6, 3-6. In the Mixed Doubles, Rohan Bopanna and his Slovakian team-mate Katarina Srebotnik have advanced to the quarterfinals. Sania Mirza and Leander Paes, with their partners, have alrerady booked last-8 berths.