Ultimate Fighting Championship welterweight titleholder Georges St. Pierre and UFC lightweight champion B.J. Penn will rematch on Jan. 31 for the 170-pound belt. If Penn wins, he's expected to defend both titles. If St. Pierre emerges victorious, it could lead to a mega-fight with middleweight titleholder Anderson Silva to make a strong case for who is the pound-for-pound best fighter in the world.
"If Georges wins, obviously there's another super-fight lined up for him that he could possibly take," said UFC president Dana White, alluding to a bout with Anderson Silva.
"Hypothetically speaking, if he (St. Pierre) beat B.J. Penn that night, it would be up in the air who is pound-for-pound the best in the world," added White. "Who knows what we'd do, but it's obviously a very interesting fight. If he beats B.J."
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