The Iceman throwing in the towel?

Following consecutive knockouts to make it four losses in his past five fights, former UFC light heavyweight champion Chuck Liddell is leaning toward retirement, a source close to the 39-year-old told SI.com on Sunday.

In the wake of Liddell's opening-round, technical-knockout loss to Mauricio "Shogun" Rua on April 18, UFC president Dana White said he considered the performance to be Liddell's final effort in the Octagon. Yet, members of the fighter's camp, including trainer John Hackleman, remained ambivalent as recently as Friday.

Click HERE for the story