Earlier Monday, the WADA said it uncovered a state-run system of cheating in Russian Federation, in which doping samples were tampered with and positive drugs tests turned into negative results by doping laboratories in Moscow and Sochi.
Russian track and field athletes have already been banned from competing at the upcoming Games, and now the World Anti-Doping Agency's executive board wants all Russian teams banned from the Rio de Janeiro Olympics.
The International Olympic Committee says that its executive board will hold a telephone conference Tuesday to consider possible sanctions that would include the 2016 Olympic Games in Rio.
IOC president Thomas Bach said the committee wouldn't hesitate to apply the toughest sanctions available. The body's investigation found the Russian ministry of sport "directed, controlled and oversaw" the manipulation of the athletes' urine samples.
Russian President Vladimir Putin says the officials named in a new report as directly responsible for widespread doping will be suspended pending a thorough investigation in Russia. That program involved dark-of-night switching of dirty samples with clean ones; it prevented Russian athletes from testing positive.
The World Anti-Doping Agency called for Russian Federation to be banned from the Rio Olympics on Monday and urged global sports governing bodies to bar Russian Federation until "culture change" is achieved.
"In the face of such evidence of state-sponsored subversion of anti-doping processes, Wada insists upon imposition of the most serious consequences to protect clean athletes from the scourge of doping in sport", said Wada president Craig Reedie, who is also an International Olympic Committee member.
The report shows evidence of a state-sponsored system of doping among Russian athletes, including during the 2014 Olympics in Sochi.
McLaren also worked with American Senator George J. Mitchell on what came to be known as the "Mitchell Report", an independent investigation into the use of steroids and performance enhancing substances in Major League Baseball.
He was relying on the IOC and global sports federations to figure out appropriate sanctions.
The report does not make any recommendations.
The investigator behind a report that found widespread doping in Russian sports says he's confident the document was not leaked, and stands by its credibility.
Those letters were written in anticipation of the sort of results Mr McLaren delivered on Monday - results that were previewed in a mostly overlooked section of the IAAF report, released in June, that called for the Russian track team's ouster. "Blanket bans have never been and will never be just".
But McLaren, whose report went public Monday, said Russia's cheating also included the 2013 track world championships in Moscow and the 2015 swimming world championships in Kazan.