Among serious problems highlighted by IOC President Thomas Bach included the appointment of Gafur Rakhimov, a Uzbek allegedly linked to organised crime, as Interim President of the International Boxing Association (AIBA).

An investigation into AIBA governance has been opened by the IOC, run by its chief ethics and compliance officer, Paquerette Girard-Zappelli.

Bach also said they have not yet accepted AIBA's claim that no bouts at the 2016 Olympic Games in Rio de Janeiro were affected by match-fixing.

"We are extremely worried about the governance of AIBA," the German said here today. 

"We have received a report from our chief ethics officer and from the IOC Sports Director [Kit McConnell], which funneled the decision which we already took last December to withhold future financial contributions to AIBA.

"The IOC Executive Board is not satisfied with the report prepared by AIBA on governance, finance, referee and doping issues.

"The IOC reserves the right to revue the inclusion of boxing at the Youth Olympic Games Buenos Aires and Olympic Games Tokyo 2020."

AIBA must now deliver a further report by April 2018.

The world governing body have already described the IOC response as "extremely disappointing" as they hoped they would "have understood that the processes necessary to implement even more measures require more time and that the positive steps already taken in recent times are evidence of AIBA’s strong efforts and willingness to reform".

Specific concerns raised included "issues surrounding the new Interim President", the lack of "clarity" around finances, the failure of an approved project to reform the referees system and the absence of a "robust anti-doping programme".

Bach also cited as problematic the "preparations for the Extraordinary Congress in Dubai and the way the new leadership was, I cannot say elected, but promoted or installed".

Rakhimov was chosen to replace Franco Falcinelli at the AIBA Extraordinary Congress in Dubai last month after the Italian decided to step down.

AIBA claimed the 66-year-old was moved to the role in accordance with the AIBA statutes, it was claimed, following a meeting held by the world governing body's Executive Board during the lunch break, as the longest serving vice-president.

Falcinelli had originally replaced Taiwanese IOC member C K Wu, forced out of office after 11 years following allegations of financial mis-management. 

Rakhimov has repeatedly been named as a mafia boss in the media with strong links to organised crime, although he has never been prosecuted of anything. 

Last month, however, he was among 10 individuals the United States Treasury announced they were imposing sanctions on because they were allegedly associated with the alleged Eurasian criminal entity, the Thieves-in-Law.

Bach also made clear that the IOC decision last year to reduce boxing quota places as well as the removal of two male weight categories to make way for two new female ones is "final".

AIBA officials had announced at their Extraordinary Congress in Dubai they planned to lobby the IOC to overturn this decision. 

Bach also conceded that they have not ruled out the possibility of matches at Rio 2016 being fixed. 

Suspect results included Russia's Evgeny Tishchenko winning the gold medal in the men's heavyweight final over Kazakhstan's Vassily Levit, even though he appeared to be on the back-foot throughout.

Ireland's bantamweight world champion Michael Conlan was involved in one of the most controversial contests of the Games after seeming to dominate a quarter-final against Vladimir Nikitin before the Russian was awarded the victory.

"We at the time received reports from a committee established by AIBA which was dismissing these concerns," Bach said. 

"But from the fact that refereeing is part of the decision we already took in December last year, we were requesting more info and you can conclude that we are still looking into this issue. 

"We want to have satisfying explanation that the results presented to us does reflect the reality."

AIBA claim they will put into place a "New Foundation Plan" over the next six months.

"This plan and the recommendations produced will be discussed during the AIBA Executive Committee meeting in July and an update will be provided to the IOC in the requested April 30 report," they said.

"In the meantime, AIBA will continue its efforts to convince the IOC of its determination to not repeat any of the past mistakes and its commitment to a fresh, positive future centered on good governance and sound management."

They did not mention refereeing problems and the judging scandal at Rio 2016 in their statement today.