UFC 63: Hughes vs. Penn was a mixed martial arts event held by the Ultimate Fighting Championship on September 23, 2006. The event, originally subtitled "Hughes vs. St. Pierre," was scheduled to feature a UFC Welterweight Title match between champion Matt Hughes and Georges St.-Pierre. Nevertheless, a groin injury—which was reported early in August—forced St.-Pierre off the card.

Cast

Matt Hughes

Self

B.J. Penn

Self

Mike Swick

Self

David Loiseau

Self

Melvin Guillard

Self

Gabe Ruediger

Self

Rashad Evans

Self

Jason Lambert

Self

Joe Lauzon

Self

Jens Pulver

Self

Roger Huerta

Self

Eddie Sanchez

Self