Filed under: Featured Videos , News , Radio Highlight , UFC , Videos Frank Mir has his career rolling once again, and the former UFC heavyweight champion has been getting the job done with his hands. Mir (18-9 MMA, 16-9 UFC), who takes on fellow ex-champ Andrei Arlovski (24-10 MMA, 13-4 UFC) at UFC 191 on Sept. 5 at Las Vegas’ MGM Grand Garden Arena, has scored knockout victories over Antonio Silva and Todd Duffee in his most recent bouts. Those knockout wins brought Mir back from a career low-point that saw him lose four consecutive bouts from May 2012 to February 2014. Mir has worked his way up to the No. 11 spot in the NOS Energy Drink heavyweight MMA rankings