LAS VEGAS (KHNL) - Seventeen months ago, Frank Mir beat Brock Lesnar by submission. On Saturday in Las Vegas, Lesnar got his revenge against Mir, defeating him in a vicious second round technical knockout. Lesnar improves to 4-and-1 in his young UFC career, with his only loss to Mir last year. Mir gave up several pounds to Lesnar in the fight, and it showed, as he couldn't garner any offensive attack against the former collegiate wrestling champ. Lesnar becomes just the third former NCAA wrestling Champ to also win a UFC Heavyweight title, joining Kevin Randleman and Mark Coleman, as the only fighters to accomplish such a feat. In the middleweight title fight, Georges St. Pierre defeats Thiago Alves by unanimous decision. GSP won all five rounds on the judges scorecards and improves to 19-2 with the victory.