After studying law in Lille and obtaining his Lawyer's Certificate, Hadrien Flamant worked for several years in the professional sports sector, in particular with Racing Club de Lens and LOSC Lille.
Within the framework of these experiences, he has been involved on a daily basis in various matters such as sports contracts (transfers, players' contracts, coaches, agents, etc.), sports regulations (FFF, LFP, FIFA, UEFA), sports litigation (FIFA, CAS, LFP), discipline (players, managers, staff, fans), commercial contracts (notably sponsoring, suppliers), insurance, club or fans tort liability, or even criminal law (fraud, identity theft, defamation).
Hadrien Flamant is also co-president and founder of a sports association in Lille involved in social integration through sport.
Finally, he regularly gives lectures and training at Université de Lille.