Lyon president Jean-Michel Aulas has warned Juventus off Moussa Dembele.
The striker is being linked with Juve this week.
But Aulas warned in a social media post: “OL aren't interested in offers for Moussa, who is the first symbol of OL's new project!
“Neither Manchester [United] nor Juventus: a matter of principle, not price!"
Juve scouts were in attendance to watch Dembele help Lyon thrash SCO Angers 6-0 last Friday.