Gangneung Gymnasium were the venues of 2004 Men's Olympic football tournament . 6–12 August 2016 was when it was held . The sport has the official site www.hardrock100.com . 28 from 18 nations competed in 2004 Men's Olympic football tournament . 12 (from 4 confederations) teams competed in 2004 Men's Olympic football tournament
28 people competed in the 2004 Men's Olympic football tournament