Narsingh Yadav's hopes of competing in the Rio Olympics seems bleak. The wrestler today failed a second dope test which was conducted on him on July 5. It is learnt, already under provisional suspension for failing a June 25 dope test, Narsingh has also flunked the second test done on both his 'A' and 'B' samples taken on July 5.A Wrestling Federation of Indian source said it is the same substance that was found in the first test and it was unlikely that it would go out of the system. The source was referring to banned anabolic steroid methandienone. Following the doping storm, Parveen Rana was named as Narsingh's replacement in the 74kg category. The move has been approved by United World Wrestling.Narsingh has been claiming that he has been framed in the scandal by rivals. But the 26-year-old's food supplements have reportedly been found to be clean in tests conducted after his allegations, dealing a further blow to his Rio hopes.