Video - Nigerian Paralympian speaks on Doping

Still on doping, the International Paralympics Committee banned Nigeria's former Paralympic and Commonwealth Games champion, Esther Onyema, for four years in May. The 38-year-old Para power lifter is highly regarded in Nigeria after winning gold and silver medals at the London 2012 and Rio 2016 Paralympic Games. CGTN's Deji Badmus interviews Onyema on her ban.