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Thailand's Chatchai Butdee (L) punches Russia's Vladimir Nikitin during the Men's Bantam (56kg) match at the Rio 2016 Olympic Games at the Riocentro - Pavilion 6 in Rio de Janeiro on August 14, 2016. / AFP / YURI CORTEZ (Photo credit should read YURI CORTEZ/AFP/Getty Images)

Thailand's Chatchai Butdee (L) punches Russia's Vladimir Nikitin during the Men's Bantam (56kg) match at the Rio 2016 Olympic Games at the Riocentro - Pavilion 6 in Rio de Janeiro on August 14, 2016.   / AFP / YURI CORTEZ        (Photo credit should read YURI CORTEZ/AFP/Getty Images)