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Nesta Carter’s B sample positive, reports say

Nesta Carter

MOSCOW, RUSSIA - AUGUST 11: Nesta Carter of Jamaica prepares to compete in the Men’s 100 metres semi final during Day Two of the 14th IAAF World Athletics Championships Moscow 2013 at Luzhniki Stadium on August 11, 2013 in Moscow, Russia. (Photo by Mark Kolbe/Getty Images)

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Jamaican Olympic sprint relay champion Nesta Carter‘s B sample from recent Beijing 2008 retests also reportedly tested positive for a banned stimulant, further putting the nation’s Olympic 4x100m title at risk.

Reuters and the Jamaica Gleaner reported Wednesday that Carter’s B sample came back positive, five days after it was first reported that Carter’s A sample was positive in retests. The reports said the same banned stimulant, methylhexanamine, was the cause for the failed tests.

Carter’s agent, the Jamaica Olympic Committee and the Jamaica track and field federation did not immediately return messages left requesting comment.

Methylhexanamine has been on the World Anti-Doping Agency’s banned list since 2004 and was reclassified as a “specified substance” in 2011. Specified substances have a greater chance of warranting a credible non-doping explanation, according to WADA.

Carter would be one of 31 athletes from 12 nations across six sports whose recent retests of 2008 Olympic drug-test samples came back positive.

Carter was the leadoff runner for Jamaica in the 2008 and 2012 Olympic 4x100m relays, both won in world-record time. Usain Bolt also ran on those relays, accounting for two of his six Olympic titles.

The entire Jamaican relay team could be stripped of medals if one member is disqualified, as has happened with U.S. relay teams at past Olympics. Only the International Olympic Committee has the power to strip medals.

Carter was also on Jamaican 4x100m relay teams at the 2011, 2013 and 2015 World Championships, helping Bolt to three of his 11 World titles.

Carter’s best individual accolades were 2013 World Championships bronze in the 100m and a personal-best 9.78 seconds in the 100m on Aug. 29, 2010, making him the sixth-fastest man all time.

Carter, 30, last raced Sept. 13, according to

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