David Haye and Dereck Chisora are to face each other at Upton Park on 14 July in a fight sanctioned by the Luxembourg Boxing Federation.
The british heavyweights were involved in a brawl following Chisora’s defeat to Vitali Klitschko in Munich.
Neither hold a British licence, Chisora’s was withdrawn after a number of controversial incidents before and after the Klitschko fight.
Haye relinquished his licence when he retired in October last year.
Meanwhile:
Amir Khan’s rematch with Lamont Peterson is in doubt after the American champion failed a drugs test.
Both fighters agreed to random testing before their light-welterweight bout in Las Vegas on 19 May and Peterson tested positive for synthetic testosterone.
“Lamont has never had a positive test either before or after this isolated occurrence,” said a Peterson statement.
“We plan to submit medical findings by Tuesday reflecting the facts in support of Lamont’s good faith intentions.”
The fighters are due to meet for a second time on 19 May after the World Boxing Association ordered a rematch following Peterson’s controversial victory over Khan on 10 December, 2011.
The WBA claimed there were “multiple irregularities” in the first fight after Khan appealed against the points defeat which took place in Peterson’s home town, Washington D.C.
The statement added: “We have tremendous respect for the Voluntary Anti-Doping Association [Vada] and its mission. Lamont, [his manager] Barry [Hunter] and the entire team emphatically support random drug testing in the most comprehensive manner possible.
“We are working expeditiously with a team of pathologists and other medical specialists to confirm the origin of the test result and in full compliance with the rules of the Nevada State Athletic Commission.”
Khan’s business manager Asif Vali told Sky Sports News: “It was a shock when I received the call to say Lamont had failed a drug test.
“However, the Peterson team seem to think that something’s gone wrong during the very first Vada drug test which Lamont took in March.
“Their explanation is that it’s something he took earlier on in the year – before the last fight.
“The fight’s on. The Nevada commission will come back to us with their findings. That decision’s due to come to us by the end of play on Tuesday.”
