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.
Matt Hughes
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B.J. Penn
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Mike Swick
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David Loiseau
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Melvin Guillard
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Gabe Ruediger
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Rashad Evans
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Jason Lambert
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Joe Lauzon
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Jens Pulver
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Roger Huerta
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Jason Dent
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Eddie Sanchez
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Mario Neto
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Jorge Gurgel
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Danny Abbadi
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Tyson Griffin
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David Lee
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