Frank Warren, who along with Top Rank is the promoter for WBC heavyweight champion Tyson Fury, says a unification with Anthony Joshua would likely not happen until February of next year.
The promoters were hopeful that a showdown between Joshua and Fury could take place in December.
That won't happen - with the ongoing coronavirus pandemic freezing the sport of boxing.
Fury was going to face Deontay Wilder in a trilogy fight on July 18th in Las Vegas. But now that fight is being pushed back to early October.
And Joshua is still slated to defend the WBO, IBO, WBA, IBF heavyweight titles against mandatory challenger Kubrat Pulev on June 20th, but that contest may get pushed to July 25th.
Because the Fury-Wilder trilogy is being pushed all the way to the fall, the scenario of a Joshua showdown is not going to happen until early 2021.
"That will push [a fight with Joshua] back to some time in February if that is the case," Warren said to The Mirror.
"They've locked down Vegas and the commission has said no boxing. We need the time to do the Wilder fight justice in terms of promotion, it won't go on till the autumn. The problem you have is also the training camps if they can't do them properly, they can't get in sparring partners from around the world.
"Fighters also need a date to be fully focused on. They want to be at their peak for a date so they need a date to train towards, we can't give them any dates. It is a blow as we would have liked to have got it done in the summer but it is what it is. The whole country is in the same boat, everything has gone on hold."