Celtic hitman Dembele has been linked with Lyon and Marseille amid uncertainty over his long-term future in Glasgow.
The France youngster signed from Fulham two years ago and has established himself as one of the best forwards in the Scottish Premiership, scoring 51 goals from 94 appearances across all competitions.
Marseille and Lyon are chasing the Celtic striker with the Ligue 1 giants determined to secure more firepower in order to challenge PSG and Monaco for honours.
But the Daily Record say Celtic are standing firm over Dembele.
Celtic transfer news: Lyon and Marseille want Ousmane Dembele (Image: GETTY)
It is claimed they have told interested parties they have no intention of letting him go with just 48 hours of the transfer window remaining.
Yet the Daily Record say Lyon will chance their arm with a hefty offer they hope will convince Celtic into selling.
Dembele is reportedly not agitating for a move away and is happy at his current club.
However, he would relish the chance to return to France with one of the biggest teams in Ligue 1.
Marseille have previously emerged as frontrunners for the Celtic star.
Celtic transfer news: Moussa Dembele is a key asset to Brendan Rodgers (Image: GETTY)
Moussa Dembele bags a SCREAMER for Celtic
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But the imminent departure of Lyon forward Mariano Diaz is primed to force their hand.
Diaz signed for the Ligue 1 side a year ago and struck 18 goals as they secured a Champions League spot.
He is now, though, set to return to Real to provide competition for Karim Benzema up top.
Celtic face a fight to keep Dembele.
And Rodgers recently suggested the Hoops still had plenty to do in the transfer market regardless of what happens with their star man.