Monaco have reported two unnamed clubs to Federation Internationale de Football Association regarding "unauthorised contact" with Kylian Mbappe and the 19-year old forward's representatives, say the London Evening Standard.
The Ligue 1 champions said in a statement: "AS Monaco notes with regret that "important" clubs of European football increase contacts with Kylian Mbappe (and his agents) without the permission of the club".
Monaco have not confirmed which clubs made illegal approaches for the France global forward, but are hoping that the French Football League and FIFA can prevent it from happening again.
"To put an end to this unacceptable situation, AS Monaco is considering asking the French Football League (Ligue de Football Professionnel) and Fifa to commit disciplinary procedures against offending clubs".
This summer, Monaco starlet Kylian Mbappe has dictated much of the narrative with Europe's elite circling around the French global striker.
The 18-year-old is wanted by several clubs and Monaco, who do not want to sell a player whose goals contributed to them reaching the semi-finals of the Champions League last season, responded on Thursday by releasing a statement.