There are two Olympic styles of wrestling, freestyle and Greco-Roman. With one key exception, the rules of the two styles are identical. In Greco-Roman, a wrestler may not attack his opponent's legs, nor use his own legs to trip, lift or execute other moves. In freestyle, both the arms and legs may be used to execute holds or to defend against attack. Freestyle is similar to the "folkstyle" wrestling popular in American ;schools and universities, but ...