Mahesh Bhupathi and Mark Knowles of Bahamas suffered a straight sets defeat to bow out of the Hamburg Masters tennis tournament in the second round.

The Bhupathi-Knowles duo, seeded fourth in the event, were stunned 2-6, 3-6 by the unseeded American pair of James Blake and Mardy Fish on Tuesday. The Indo-Bahamian pair had earlier got a bye in the first round.

The other Indian in the fray Leander Paes and his new partner Tommy Robredo of Spain, who defeated Czech-Russian duo of Tomas Berdych and Dmitry Tursunov in the opening round, will take on third seed Israeli pair of Jonathan Erlich and Andy Ram in the pre-quarterfinals.