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The men's Sweet 16 got off to a wild start Thursday, with three of the four matchups ending in upsets. Top-seeded Duke won't be repeating as national champions, while Butler defeated Wisconsin to keep their hopes of returning to the title game alive.

What a night of Sweet 16 matchups. Jimmer, Kemba, Duke and Butler are all taking the court seeking a trip to the Elite Eight. Grab your brackets (busted or otherwise) and settle in for a night of men's NCAA tournament action.