The decision by the Court of Arbitration for Sport will come on Friday, just hours before the Olympics open.
A decision is expected on Friday over the eligibility of some Russian athletes to take part in the Pyeongchang Olympics. The decision is slated to arrive just hours before the Olympics opening ceremony.
The 47 competitors were barred for violating antidoping rules in previous years.
But the ruling by the Court of Arbitration for Sport could come as late as Friday, just hours before the Olympics open.
0but President of the International Olympic Committee, Thomas Bach won't say what he thinks will happen:
"We think we have good arguments. And now the procedure is ongoing so I can not speculate on the outcome. "
The athletes in limbo are cross country skiers and biathletes, bobsledders, hockey players and speed and figure skaters.
This includes six-time Olympic gold medallist in short-track speedskating, Viktor Ahn, as well as cross-country ski gold medallist Alexander Legkov and skeleton gold medallist Alexander Tretiakov.
Russia continues to deny the existence of a state-sponsored doping program.