Joshua vs Prenga: The 24 hours which will make or break British super-fight

It would rank among the biggest upsets in heavyweight history if Fury lost to a man who turns 47 this year and has lost seven of his past 10 fights.

“Fury should dominate but the biggest risk for me is that he looks awful,” Bunce says.

“Also, Tyson might find out that he has lost something and senses some flaws in himself.”

There is a fraction more jeopardy for Joshua. Prenga is largely an unknown quantity to the wider public, but his record demands respect: 20 wins, 20 knockouts and one defeat.

“This fight is designed to be competitive, but not too competitive,” Hearn says.

“He’s never boxed at AJ’s level, but until you fight at that level, you actually don’t know if you’re good enough. But he’s decent, he’s game and he’s dangerous.”

The greater threat to the Fury-AJ super-fight is injury.

“Tyson is too smart and clever and I think Wach won’t be using his elbows or head. There will be some sort of gentleman’s agreement,” Bunce adds.

“He could injure his arm or leg. At Tyson’s age, with hard training camps, that can happen. It could also happen to Joshua.”