India's top doubles player Rohan Bopanna and his Romanian partner Florin Mergea could not defend their Madrid Open Tennis title today. In the summit clash in Madrid, the sixth seeded defending champions lost to third seededDutch-Romanian combination of Jean-Julien Roger and Horia Tecau in straight sets 4-6, 6-7 in one hour and 11 minutes. Another Indian tennis star Sania Mirza had also lost thewomen's doubles final with partner Martina Hingis, yesterday.