Reports said at the time the condition wasn’t life-threatening and that Raiola would begin a period of rehabilitation at home.
The multi-lingual football agent worked his way up from humble beginnings to become one of the most influential figures in the world game, brokering mega-deals involving some of the most prominent players.
He was representative to the likes of Pogba, Haaland, Ibrahimovic, Romelu Lukaku, Mario Balotelli, Marco Verratti and Henrikh Mkhitaryan.
It was reported that Raiola earned as much as £20million from the world record £89m sale of Pogba from Juventus to Manchester United in 2016.
It had been shaping up to be a busy summer for Raiola, with Pogba and Haaland among his clients expected to be on the move.
Forbes estimated last year that Raiola’s personal wealth was in the region of £62m.