UFC 68: The Uprising was a mixed martial arts event held by the Ultimate Fighting Championship on March 3, 2007 at the Nationwide Arena in Columbus, Ohio. In the main event, UFC Heavyweight Champion Tim Sylvia was set to defend his title against Randy Couture, who was coming out of a 12-month retirement. Couture, a former UFC Heavyweight and Light Heavyweight Champion, hadn't fought as a heavyweight since UFC 39... see more