Indian tennis great Mahesh Bhupathi said the mixed doubles pair of Sania Mirza and Rohan Bopanna needed to play to their potential if they were to begin their 2016 Rio Olympics campaign on a winning note. "Sania and Rohan are at a good section of the draw. Sam Stosur is a Grand Slam champion so she is the one to be wary of. ," Bhupathi told NDTV. When asked about Sania and Martina Hingis calling off their doubles partnership, Bhupathi said every partnership has its shelf life and they must have felt the need to move on.