Sania-Rohan in quarters

London (PTI): India had a good day in office as Rohan Bopanna secured a quarterfinal berth while Sania Mirza too sealed a place in the last-eight stage with their respective partners in the mixed doubles competition at the Wimbledon here on Wednesday. However, Mahesh Bhupathi`s campaign ended after losing a fiercely-fought men`s doubles quarter-final along with partner Julian Knowle to top seeded American twins Mike and Bob Bryan. While Bopanna and his Chinese partner Jie Zheng overcame the fighting Swedish-Hungarian duo of Johan Brunstrom and Katalin Marosi 7-6(4), 3-6, 6-1, Sania and Horia Tecau of Romania posted a comfortable 6-1, 7-5 win over Eric Butorac of USA and Alize Cornet of France. The seventh seeded Bopanna and Zheng took a little less than an hour and a half to get the better of their opponents. The Indo-Chinese duo will take on the winner of the match between Jean-Julien Rojer and Vera Dushevina and 14th seeds David Marrero and Kimiko Date-Krumm in the quarterfinals.