As originally broken by BoxingScene.com, Dereck Chisora was handed an indefinite ban and a heavy fine by the World Boxing Council following his behaviour before and after his heavyweight title fight with Vitali Klitschko earlier this month.
Chisora slapped his opponent at the weigh-in and spat water at Klitschko's brother Wladimir, before being embroiled in a brawl with British rival David Haye at the post-fight press conference.
In a statement the World Boxing Council declared Chisora had committed "one of the worst behaviours ever by a professional boxer" and said the ban would not be reconsidered until Chisora had undertaken anger management classes.
In reality the WBC's ban is unlikely to impact on Chisora's existing options. He was unlikely to fight for their title again anyway, and faces a British Boxing Board of Control hearing on March 14 at which he can expect a lengthy ban.
The WBC statement said: "The WBC is absolutely condemning the 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.
"The WBC is imposing a serious fine to be finally determined after the hearing.
"The WBC will also take off from the WBC rankings the name of Dereck Chisora and declare an indefinite suspension against fighting again for a WBC title, while demanding Chisora to take an anger management medical treatment after which his suspension will be reconsidered."
Chisora was arrested then released without charge following the incident with Haye, which started after Chisora confronted his fellow Londoner at the post-fight press conference.
Following the resulting brawl, Chisora shouted threats at his rival, who subsequently left Germany and is wanted for questioning. The WBC statement made no mention of Haye, who is currently unlicensed.
Chisora issued a statement in which he admitted his behaviour was "inexcusable", but added: "There were many things that went on behind the scenes that ultimately caused my frustrations to boil over - however, this is of course no excuse."
The German Boxing Federation have already indicated that neither Chisora nor Haye will be welcome to fight again on German soil - another obstacle to Haye's hopes of getting back in the ring with one of the Klitschkos.
Frank Warren, Chisora's promoter, criticised the WBC for failing to go through a proper disciplinary process.
"What I find strange about this is that there hasn't been a hearing," he told Sky Sports News. "Somebody arbitrarily saying 'you're banned' can't be any form of natural justice.
"Even the police in Germany let Dereck Chisora go after questioning.
"A lot of things happened behind the scenes. There were some things which he did which absolutely were wrong and he shouldn't have done, and I'm not condoning that.
"But at the end of the day you are entitled to a hearing before anybody makes a decision."
Dereck Chisora Fact File
1983: December 29 - Born in Zimbabwe, Africa before emigrating to Finchley, London.
2005: Wins ABA Championships super-heavyweight category.
2007: Turns professional with a second-round stoppage of British-based Hungarian Istvan Kecskes at Wembley Arena.
2008: Beats fellow prospect Sam Sexton with a sixth-round stoppage.
2009: Fined and banned after retrospectively being caught biting Paul Butlin during an eight-round points win.
2010: May - Emphatically defeats faded former world title challenger Danny Williams, blowing the veteran away in two rounds to lift the British heavyweight title.
September - Defends British title with ninth-round stoppage of old foe Sexton, also winning the Norwich fighter's Commonwealth belt.
November - Given 12-week prison sentence suspended for two years after being found guilty of submitting his former girlfriend to a "humiliating" assault.
December - Due to challenge IBF/WBO heavyweight champion Wladimir Klitschko in Germany but the Ukrainian pulls out with stomach injury.
2011: April - Rescheduled clash with Klitschko also scrapped, with the champion blaming a slow recovery from injury. Klitschko fights David Haye in July instead.
July - Weighing a career-high 18 stone 9 pounds, loses title to fellow unbeaten star Tyson Fury at Wembley Arena.
November - Returns to action with a low-key warm-up win against Remigijus Ziausys.
December - Loses a controversial split decision to home favourite Robert Helenius in Finland, with many feeling the Londoner won the fight for the vacant European title.
Handed a February 2012 shot at WBC champion Vitali Klitschko in Munich, Germany.
2012: February 19 - Loses his fight with Klitschko on points, but his brave performance is overshadowed by out-of-the-ring controversies. He slaps Vitali in the face at the weigh-in, before spitting water at his brother Wladimir in the ring. After the fight, he becomes involved in a brawl with former WBA heavyweight champion David Haye, with the two trading verbal and physical blows at the post-fight press conference.
February 28 - Handed "indefinite suspension against fighting again for a WBC title" following his conduct in Munich. The World Boxing Council also say "a serious fine" will be imposed, and demand Chisora undergoes "anger management medical treatment".