Triathlon had four questionable tests, while in swimming 18 positive doping tests were hidden.

"People have said "your system doesn't work", I think the system works reasonably well but it is not flawless if people go out of their way to cheat, so we have a number of challenges going forward in seeing how we can make sure this never happens again".

"My suspension is not being considered -it is a matter for the president and prime minister to decide", R-Sport quoted Mutko as saying.

The Canadian law professor's report said it was "inconceivable" that Mutko did not know what was going on and accused him of personally intervening to cover up a positive test belonging to a foreign player in the Russian Premier League.

It also wants the IOC to "decline entries, for Rio 2016, of all athletes" submitted by the Russian Olympic Committee and the Russian Paralympic Committee.

The IOC will not organise or give patronage to any sports event or meeting in Russian Federation.

In a statement, Hansen added that athletics officials have a duty to work with Russian Federation on the "rehabilitation process however long and hard it proves", calling it "absolutely essential for the future credibility of athletics and all sport". "It indicates an alliance of the Russian Ministry and the Moscow laboratory and a process of cheating the system which is just unacceptable".

By STEPHEN WILSON and EDDIE PELLS AP Sports Writers A letter drafted by US and Canadian anti-doping leaders urging Russia's removal from the upcoming Olympics is circulating days before the.

The letter, obtained by The Associated Press, was circulated by US and Canadian anti-doping authorities before the release on Monday of a World Anti-Doping Agency report which accused top Russian officials of covering up hundreds of doping cases.

"As a supporter of the fight against doping with zero tolerance position, the Olympic Committee of Russian Federation is ready to provide full assistance in this, communicate, where appropriate, with any global organisations".

How FIFA's ethics committee may react is another issue. In the women's divisions Irina Dolgova and Natalia Kuziutina are seeded, which means they will be separated from other strong seeded athletes.

A bombshell report on "state-dictated" doping in Russia, which will host the 2018 World Cup, said the manipulation of tainted Russian samples was controlled by Mutko's ministry.

The committee, chaired by Canadian cross-country skier Beckie Scott, said it was "deeply upset to read of the unprecedented levels of doping and subversion that have taken place in Russian Federation".

Asked bout Mutko's situation, Federation Internationale de Football Association said "the Ethics Committee is an independent body of Federation Internationale de Football Association and only it can decide what actions to take in respect to this issue".

"He (the Russian leader) recalled that in the 1980s, unfortunately, the world already went through this, seeing a mutual boycott of Olympic Games, which, by the way, was later recognised as a mistake", Peskov noted.

McLaren said Monday he was "supremely confident" of his findings, which found most of Rodchenkov's claims credible, including that a "mouse hole" in the Sochi testing laboratory allowed for a urine-swapping scheme to replace steroid-laced samples, enabled by secret service agents breaking into tamper-proof bottles.

The FIFA Ethics Committee to look into allegations concerning football and the role played by a member of its Executive Committee, Minister Vitaly Mutko.

Dmitry Peskov says that was because Mutko was not named as someone "directly involved" in the cover-up.

She was subsequently banned for three years and two months after abnormalities were detected in her biological passport, although the ban was later reduced by seven months and ended last August.

The company's chief executive Nick Bitel said: "The next step is to get the judgment enforced in Russian Federation".