UFC 52 Couture vs Liddell 2: Chuck Liddell goes back into the ring for a rematch against UFC Light Heavyweight champ Randy Couture, who smoked him two years earlier in their first fight. Meanwhile, the undercard match features a battle for the UFC Welterweight Championship between reigning champ Matt Hughes and his nemesis, Frank Trigg. Appearances from other fighters include Georges St. Pierre, Matt Lindland, Ivan Salaverry, Joe Riggs and Renato "Babalu" Sobral.