Harrison is undefeated as a professional

It will be the biggest all-British heavyweight fight since Lennox Lewis beat Frank Bruno in Cardiff in 1993.

Williams beat Mike Tyson last year before losing a world-title clash against Vitali Klitschko while Harrison won Olympic gold at the 2000 Olympics.

Harrison said: "If I can't beat Danny then I'm not where I'm supposed to be."

Williams, 33, said: "After the Vitali Klitschko fight people think I am damaged goods. That's why Audley Harrison took the fight, but I will be ready."

Harrison, also 33, is undefeated in 19 pro fights but often against mediocre opponents, said the fight had been agreed in principle.

Frank Warren called me ordinary but I'll show him I'm extraordinary Audley Harrison

He added: "I can measure myself against Danny Williams. I'm looking for a name on my record and as a former world title challenger he fits the bill.

"Frank Warren called me ordinary but I'll show him I'm extraordinary on his show.

"It's a great way to finish the year with Audley Harrison, the prodigal son, coming back into town with his Union Jack hat on.

Feature: Audley's back

"What better way could there be for Frank Warren than his great nemesis returning for his anniversary show?"

The fight will be joint top of the bill at the ExCel Arena with British champion Matt Skelton's WBU fight against Irish-born Kevin McBride.

McBride followed up Williams' success over Tyson by ending the former world champion's career when he stopped him in six rounds in Washington in June.

Amir Khan will also compete on the bill against an as yet unnamed opponent.

I can just see a really fired-up Williams training like hell for this one From SS Have your say on Five Live

The Williams v Harrison bout is the icing on the cake for the anniversary promotion of Frank Warren, 25 years to the day since he was granted a promoter's licence by the British Boxing Board of Control.

Williams' future in the sport looked in doubt after he pulled out of a match with Skelton at late notice in July.

Skelton turned down a rescheduled fight with Williams in December and will now face McBride instead.