According to Complete Sports, the team got banned after one of the athletes, Tosin Adeloye, tested positive to a banned substance at the Confederation of African Athletics (CAA) Super Grand Prix/Warri Relays which took place in Warri, Delta State in July 2015.
As a result, Nigeria will no longer be represented at the 4x400m event even after the team came 4th during the IAAF World Championship in August 2015. All records of the team making the top list during the Beijing games have also been removed from the IAAF website.
In addition to being disqualified from the Olympics, Tosin has been banned for 8 years and also stripped of all the results she achieved individually or jointly.
While other members of the relay team will still take part in other events, it’s unfortunate that Regina George, one of the athletes that raised funds via GoFundMe, will not make the Olympics because the 4x400m race was the only event she was to participate in.
More attention should be paid to Nigerian athletes, so they are properly educated on the necessary regulations to obey and also the kinds of substances to be avoided.