Joshua: "If you don't defend the belt, it's taken away from you."

"It's a good thing. The IBF is doing what it does. Daniel Dubois is the reigning champion and I was called upon to do my job. The problem is that Usyk has a mandatory rematch and the IBF says he has to defend his title, right? If you don't defend the belt, they take it away from you. It's a common situation in boxing and I'm next in line. The fight with Otto Wallin made me a contender," Joshua told YouTube channel The Stomping Ground.