MMA on Tap has confirmed that Icon Sport middleweight champion “Ruthless” Robbie Lawler has signed a four-fight contract with EliteXC. Lawler’s first bout under the new deal will come September 15, 2007 in Honolulu, Hawaii when he battles Murilo “Ninja” Rua in a Icon Sport/EliteXC middleweight unification bout at EliteXC: Uprising.