A World Anti-Doping Agency report out overnight Monday could lead to the entire Russian team being kicked out of next month's Olympics.
The Russian athletics team has already been banned following revelations of drug cheating, and the report into allegations of "state-sponsored" doping in Russia is tipped to send more shockwaves through the sporting world
New Zealand is among 10 nations and 50 anti-doping groups who are poised to sign a letter calling for a complete ban of all Russian athletes from the Rio Olympics, if the report finds damning evidence.
"There is a good chance these allegations will be confirmed and if that's the case we need to be ready and act quickly," says Drug Free Sport NZ's Graeme Steel.
"We can't sit on our hands for another two weeks to work out what we do - the games aren't far away."
The long-awaited report commissioned by the World Anti-Doping Agency is out 1am on Tuesday (NZ time).
It's expected to find systematic and widespread evidence of performance-enhancing drug use by dozens of Russian Olympians at the Sochi Winter Olympics, and that the State covered it up.
New Zealand officials say if that's proven they'll join at least 10 other countries in signing a letter calling for a complete ban of Russian athletes.
"You can't accept this level of cheating and not expect a strong response," Mr Steel says.
This is a watershed moment in Olympic sporting history.
The report, which will be revealed overnight to the world's media in Toronto, will see pressure put on the IOC as early as tomorrow when the letter calling for a blanket ban could be presented.
New Zealand's Olympic Committee won't speculate on what it's expecting from the report, or which new Kiwi athletes could make the cut given nominations for Rio have now closed.
"The jurisdiction about who goes to the Olympic Games is one for the IOC to contemplate," says Peter Miskimmin, Sport NZ CEO.
"They're the ones who will have all the information from this report and they will make their decision accordingly. We hope that they make a positive stand."
Russia is calling this a well-orchestrated and biased campaign - and one they'll appeal.
But time is running out, with just 18 days until the Games begin.
Newshub.
