Lesnar dropped by Overeem in first round, then stuns UFC world by announcing his retirement
Brock Lesnar's long-awaited return to the Octagon didn't last long Friday night at UFC 141 in Las Vegas. Alistair Overeem landed a body kick that sent Lesnar to the mat, where he was pummeled by Overeem and the fight was stopped. Lesnar then surprisingly announced his retirement from UFC after the fight.