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Demian Maia, left, celebrates after knocking down Dong Hyun Kim during the first round their UFC 148 welterweight fight at the MGM Grand Garden Arena, Saturday, July 7, 2012, in Las Vegas. Maia won the bout by TKO. (AP Photo/David Becker)

Demian Maia, left, celebrates after knocking down Dong Hyun Kim during the first round their UFC 148 welterweight fight at the MGM Grand Garden Arena, Saturday, July 7, 2012, in Las Vegas. Maia won the bout by TKO. (AP Photo/David Becker)