Indian tennis legends Mahesh Bhupathi and Leander Paes entered the quarter finals of the mixed doubles event in the US open.They will next play either the Stephen Huss-Virginia Ruano Pascual pair or eighth seeds Nenad Zimonjic-Bethanie Mattek-Sands.Another Indian in the fray, Sania Mirza and her Canadian partner Daniel Nestor will take on the American duo of Carly Gullickson and Travis Parrott in the second round.