Decision to ban Russian track and field athletes following doping allegations was upheld this week
The International Olympics Committee (IOC) is expected to announce later today whether the entire Russian delegation will be preventing from taking part in the Rio Games.
It comes after the Court of Arbitration for Sport this week upheld the decision to ban Russia’s track and field athletes.
Over 300 competitors in other sports could now face a similar fate in the wake of allegations that Russia has systematically covered up doping in "all sporting disciplines".
A World Anti-Doping Agency inquiry found the sports ministry and secret service "directed and oversaw" the manipulation of urine samples, resulting in at least 312 falsified results up until at least last year's world swimming championships.
According to the report, the state-sponsored cheating happened after an "abysmal" medal count at the Vancouver Winter Olympics in 2010.
The cheating involved clean urine being frozen and switched for doped urine, often passed through secret holes in laboratories.
As well as the Sochi Winter Olympics in 2014, Russia's cheating also included the 2013 Athletics World Championships in Moscow.
The doping continued in the 2015 Swimming World Championships in Kazan, chief investigator Richard McLaren said.
The IOC has said the findings represent a "shocking and unprecedented attack on the integrity of sports and on the Olympic Games".
The Rio Games are set to kick off on August 5th.