Anthony Joshua will challenge IBF heavyweight champion Daniel Dubois for his title on Sept. 21 at London’s Wembley Stadium, which headlines the Riyadh Season Wembley Edition bill. On ProBox TV’s “Deep Waters,” analyst Paulie Malignaggi said he felt two-time heavyweight champion Joshua, who has had comfortable wins over Otto Wallin and Francis Ngannou since aligning with coach Ben Davison, is a changed fighter under the trainer. “I’ll tell you what, AJ with Ben Davison is a bit of a different character, and there’s a different animal there with Anthony Joshua,” Malignaggi said. “I like what I’m seeing with Anthony Joshua, so I don’t know that it’s the same AJ that [Oleksandr] Usyk beat twice already. But we’ll see.”