It seems that there hasn't been a knockout in the first round since Mike Tyson landed a right hook to the face of Clifford Etienne in 2003. Look past Paquiao and UFC fights, the next time football fans see a K.O. it will be in the 2012 NFL draft. In this case, K.O. is Iowa State all-conference offensive tackle Kelechi Osemele. Over the past four years at Iowa State, Osemele has evolved into one of the nation's best blockers.

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