Who is Mickaël Marsiglia, the tactician officially appointed as Patrick Vieira's first assistant?

Mickaël Marsiglia has been appointed as Patrick Vieira's first assistant for the Senegal national team. The two have known each other since childhood at AS Cannes, where they grew up together. Marsiglia, a former midfielder, had an international playing career before transitioning to coaching and training, becoming a recognized tactician. He has accompanied Vieira in several European clubs, serving as a trusted assistant.