Hearn: If either loses their warm-up, it's over - you cannot do AJ-Fury

The richly anticipated Anthony Joshua versus Tyson Fury showdown could still be derailed if either man loses a tune-up bout beforehand, says promoter Eddie Hearn.Both Joshua and Fury have signed to fight each other later this year. But AJ will have a comeback bout on July 25 in Saudi Arabia and Fury is looking to have a tune-up contest of his own in the summer.