Former Olympic superheavyweight champion Audley Harrison stopped Danny Williams in the third round Saturday in a non-title heavyweight fight at ExCel Arena.

Harrison, the 2000 Sydney Olympics winner who lost a decision to Williams a year ago, floored Williams with a left uppercut.

With accurate shots, the 35-year-old left-hander opened up deep gashes on the bridge of Williams' nose and underneath his left eye.

``They don't give away Olympic gold medals. I can fight,'' said Harrison, who exchanged punches with Williams at Friday's weigh-in.

``In 2008 I will win the world title, in 2008 I will be undisputed. You saw today I have definitely got the skills.''

``People say I've got no heart and am petrified. The bottom line is that we all have bad days at the office. Last year. I was not in the right place. I came back today with my closet cleared out. Boxing is what I want to do and let me go on in my career.''

Harrison is 21-2, while Williams, who took the fight as a replacement for Matt Skelton, is 36-6.