Brock Lesnar defeated Frank Mir to retain and become the undisputed UFC Heavyweight Champion at UFC 100 on Saturday night in Las Vegas, NV. Lesnar won the fight via TKO in round two via strikes to the head on the mat. After the fight, Lesnar was booed heavily by the Las Vegas crowd and got in the face of Mir yelling, “Talk all the sh*t you want to now.”

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