Gilbert Arenas is believing the hype around future NBA star Victor Wembanyama ... telling TMZ Sports the French hooper is a "generational game-changer" ... but there's one thing that could keep him from his full potential -- his feet.
We spoke with Agent Zero about the most hyped prospect since LeBron James, and he says if the 19-year-old possesses the basketball I.Q. like fellow international stars Nikola Jokic, Giannis Antetokounmpo, and Luka Donu010diu0107 .