Dereck Chisora has been suspended indefinitely by the World Boxing Council for his behaviour surrounding his recent fight with Vitali Klitschko.
British heavyweight Chisora was involved in a violent confrontation with David Haye in the press conference after his defeat by the Ukrainian.
He also slapped Klitschko at the weigh-in and spat water in brother Wladimir's face shortly before the first bell.
The WBC said it was "one of the worst behaviours ever by a professional."
It has demanded Chisora, 28, seeks anger management treatment before considering whether to lift the suspension.
The Londoner, ranked 14th in the WBC's heavyweight division, will also be taken out of the organisation's rankings.
Jose Sulaiman, president of the WBC, said the authority would also look to impose a "serious" fine on the Zimbabwe-born fighter.
"The WBC is absolutely condemning behaviours that are not to be accepted in boxing under any circumstances and will act as soon as it can proceed to impose the fines and sanctions as we consider necessary," said a statement issued by the organisation.
"Boxers are gentlemen and show to the world an example of honour and fair play when, after a tremendous battle, they go to the centre of the ring to pay respect to each other.
"Dereck Chisora is not going to tarnish the sport for those born in the humblest beds, who become sports heroes of the world to live a life of dignity and pride." Share this story