Now it has been revealed the player has a release clause in his contract.
According to Football Insider, clubs can sign the 18-year-old Frenchman for £8 million.
Olise is Leeds' top target in midfield, as he can play in central and attacking midfield.
Chelsea are also keeping tabs on the player, but he would have a much harder time breaking into their first team.
A move to Leeds may be more logical for his career.