Photo: Boulogne-Levallois Metropolitans 92/Twitter

Former NBA star guard 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.

“That’s the only thing I think will slow him down is [his] feet,” Arenas said. “Other than that, as long as he’s healthy, I don’t see anyone stopping the progression in his dominance.”