Wolves face missing half of any fee generated by fullback Rayan Ait-Nouri.
Ait-Nouri has earned rave reviews for his displays so far this season and is attracting interest from across Europe with Paris Saint Germain and Barcelona among the clubs credited with an interest.
Premier League sides Liverpool, Manchester City and Tottenham are monitoring his progress, says the Daily Mail.
But Wolves are facing a fight to keep hold of the exciting 20-year-old and they also face losing out financially on Ait-Nouri after his former club Angers inserted a 50 percent sell-on fee following his switch to Molineux last summer.
Ait-Nouri spent the 2020/21 season on loan at Wolves from Angers before the Premier League club made the move permanent for £10m last July.