In the French Open, the second Grand Slam of the season, Leander Paes and Martina Hingis have bowed out of the Mixed Doubles category. The eighth seeded Indo-Swiss pair lost to the unseeded Romanian-Slovenian team of Horia Tecau and Katarina Srebotnik, 7-6, 3-6, 6-10 in the pre-quarterfinal last night.Today, Sania Mirza and Martina Hingis, the top seeds in Women's Doubles, will figure in the pre-quarterfinals, while Paes and Daniel Nestor will battle it out in the Men's Doubles last-16.Meanwhile, in the Singles, top seeds Novak Djokovic and Serena Williams recorded easy victories yesterday to book a place in the pre-quarters. Rafael Nadal, Andy Murray, David Ferrer, Petra Kvitova and Sara Errani were also among the players who advanced to the last-16 stage.Today, Roger Federer, Maria Sharapova, Tomas Berdych, Kei Nishikori and Stanislas Wawrinka will be seen in action for a place in the quarterfinals.