Rohan Bopanna and Kristof Vliegen have entered the doubles semifinal of the Atlanta Tennis Championships in the USA. Bopanna and his Belgian partner scored a 3-6, 7-6, 10-8 win over the Israeli-Serbian pair of Jonathan Erlich and Janko Tipsarevic in the quarter-finals. The Indo-Belgian pair will take on Stephen Huss of Australia and Brazilian Andre Sa in the semifinal.