Frank Warren has confirmed there is an opponent in line for Tyson Fury should Dillian Whyte pull out of their proposed all-British clash.
Whyte has not said one word since the fight got made due to being given a 20% purse for the contest.
The Brixton heavyweight didn't attend last month's press conference, and the lack of promotion by Whyte has sparked fears over a possible pullout.
Fury was hoping to face Oleksandr Usyk in a heavyweight unification but Anthony Joshua triggered his rematch clause against the Ukrainian before the WBC installed Whyte as mandatory challenger for Fury's WBC belt.
And Fury's UK promoter Warren has revealed the contingency plan to ensure they 'cover all bases'.
"The truth of the matter is that we cover all bases."
"Would you not think, for an event of this magnitude, of what we've sold, that we would not be covering that scenario?
"Of course we cover that scenario."
Warren added that all he wants is Whyte to do his part to promote the fight.
"The bottom line of all of it is he signed a contract.
"That contract is full of what his obligations are - and by the way what our obligations are. We've fulfilled every one of our obligations. All he keeps doing is going off centre, off course, coming up with other stuff that's not in the contract.
"All I want [from] Dillian Whyte is what is in the contract. Nothing more, nothing less."
Fury-Whyte is set to become the biggest attended boxing event in UK history with 94,000 tickets sold.