By Richard Hookham BBC Sport at London's Excel Arena

Harrison, 35, predicts he'll be undisputed world champion by 2008

All week, Audley Harrison had been promising to deliver.

In the pre-fight build-up, he admitted that nothing less than an emphatic display against Danny Williams in Saturday's hastily-arranged rematch would be acceptable.

And from the moment the first bell sounded, it was clear "A Force" meant business.

Harrison rocked the former British champion with two stinging straight lefts, setting the pattern for a display of accurate punching that resurrected his own flagging career while almost certainly sounding the death knell for his opponent's.

Harrison has never lacked the tools for the job, but the British boxing fraternity have struggled to warm to his reluctance to mix it up when it matters.

But as Williams, a late replacement for Matt Skelton, found to his detriment, Audley seems to have finally got the message.

"My strategy was to win and win impressively," he said after ruthlessly stopping Williams inside three rounds.

"Everyone thought I was finished, but I told them I've only just started and I think you can see from tonight what I'm all about."

"I want an eliminator to fight Klitschko - one gold medallist to another Audley Harrison

In contrast to last year's dismal clash at the same venue, when he barely landed a single shot, Harrison displayed his full repertoire of punches as he exacted revenge on his stunned opponent.

And afterwards he hinted how the vital victory had been masterminded.

"Things couldn't have gone better for me at my training camp at Big Bear (in California) with my trainer Thel Torrance," Harrison said.

"I had prepared for Matt Skelton, who starts very fast, and I wanted to get out quick and take away Danny's confidence.

"The left hand, the uppercut and stepping around him - that's what I'm all about.

"I've had 23 fights now and you've only seen bits and pieces. Tonight it all came together."

Job done, then. So what next for the big man from Wembley?

Harrison said: "I'm grateful for Danny stepping in. It was a blessing for me as he was the one I really wanted, not Skelton.

Referee Richie Davies jumps in as Harrison floors Williams in the third

"I wasn't worried about all the revenge stuff, though, this was strictly business.

"I just wanted to get the tick from the press and the powers that be.

"But now? I don't need Danny Williams, I don't need Matt Skelton or Scott Gammer (British champion).

"I should be back up the rankings after this and I want an eliminator for (IBF world champion Wladimir) Klitschko - one gold medallist to another."

Klitschko won the super heavyweight gold medal at the Atlanta Olympics in 1996, the same gong Harrison scooped four years later in Sydney.

And Harrison added: "My goal now is to be the heavyweight champion. Not just champion but undisputed champion. It's been a hard road but I've never been discouraged from that."

Still struggling to hide his contempt for the criticism of his hit-and-miss pro career, Harrison added: "It shows my character that I can come back like this.

"Basically I was buried under rubble but I told you all that after this fight no one would question my heart any longer.

"Hopefully now I can get on with my career and people will get behind me."

Harrison was right to highlight the fact that the crowd at the Excel Arena granted him muted praise on the way out of the ring having entered it to jeers.

Grudging recognition, perhaps, of a more eye-pleasing performance.

He added: "I'm the only heavyweight in this country to have the chance to represent this country on the world scene.

"I'm ready to go and it's all about the world title now for me.

"Calvin Brock and Samuel Peter have had their chance with Klitschko and I'm the next guy.

"I've got my eyes on the prize and I'm confident I've got his number. Believe me, I will be the world champion soon."