Top Rank's CEO Bob Arum, who co-promotes WBC heavyweight champion Tyson Fury, believes his boxer will have a unification with Anthony Joshua in 2021 - provided both boxers are able to beat their upcoming opponents.
Fury will defend his world title in a trilogy fight with Deontay Wilder in the upcoming months.
And Joshua will make a mandatory defense of the IBF, IBO, WBA, WBO world titles against Kubrat Pulev on a date to be determined.
Arum's company also promotes Pulev, so of course he would first hope his boxer walks away with Joshua's titles.
But if he doesn't, Arum expects a deal for Fury vs. Joshua to get done in a single day.
"If Fury beats Wilder and if Joshua beats Pulev, which I don't want because [I promote] Pulev, then we would go ahead and do Fury vs Joshua next year. I don't think the negotiations would be fraught with difficulty. We could negotiate the deal, if we met in person, over the course of one day," Arum told Sky Sports.
"We are not known for playing games. We understand Eddie. I worked for many years with his father Barry. My prediction would be: we get a deal done over the course of one day."
Eddie Hearn, who promotes Joshua, has said that a two-fight agreement would be necessary to make a fight of this nature, for next year.
Frank Warren, who co-promotes Fury, says a two-fight agreement will not be an issue to get done.
"There will have to be a rematch. But that's not an obstacle. There are no obstacles to stopping this fight happening," Warren said.
"Our door is open. We've all signed a non-disclosure agreement. We're waiting for an offer. At our end, it is not a problem."