"Grow a pair!" Dubois' trainer addressed Joshua and Hearn amid rumors of the fight

Don Charles, trainer of Brit Daniel Dubois (21-2, 20 KOs), has urged Anthony Joshua (28-3, 25 KOs) to step up and “grow some balls,” hoping to expedite a deal after Matchroom promoter Eddie Hearn said A.J. has alternatives.

"I know Joshua personally, under Ben Davison's management he has improved significantly. We have no certainty of beating him, nor does he. The public are certainly entitled to their opinion, but we need to grow some balls and step up.

Daniel Dubois is the opponent for Joshua for September 21. We are ready,” Charles said in a conversation with talkSPORT.

The name of Joshua's next opponent will be revealed on June 25.

Earlier, Eddie Hearn told whether Daniel and Anthony will be able to hold a fight for the IBF title, which is now held by Oleksander Usyk.