French authorities are investigating potential match-fixing in Paris St-Germain's 6-1 Champions League win over Red Star Belgrade this month.
According to French outlet L'Equipe, French authorities have began looking into the outcome of the contest after a tip off by UEFA.
However, it is alleged a Red Star senior official, who has not been named, placed a wager of €5 million that his team would lose by a five goal margin.
"The club categorically rejects any and all direct and indirect implication in relation to these suspicions and would like to point out that at no moment has PSG been approached by the national financial court in charge of the investigation".
Red Star have now released a statement vehemently denying the accusations, and demanding an UEFA investigation into the matter in order to clear the club's name.
They acted after a warning from Uefa of possible manipulation of the result of the game which PSG won 6-1.
UEFA said it did not comment on ongoing investigations.
Red Star have dismissed the allegation absolutely.
Brazil forward Neymar scored a hat-trick and Edinson Cavani, Angel di Maria and Kylian Mbappe also netted at Parc des Princes in Paris on 3 October.
"Today's technologies and other mechanisms are so improved that it is basically impossible to leave this case unsolved".
"It is with utmost amazement and indignation that we have learned of the information that you have shared", PSG said in a statement to L'Equipe.
"This is not possible, this is not true", Red Star Belgrade President Dragan Dzajic L'Equipe reported.
"At no time was any club member asked to discuss matters other than those strictly related to the organisation of the match, namely meetings, visits and other official lunches around every UEFA Champions League match".