Eddie Hearn, promoter for Amir Khan and Kell Brook, is hoping to finally match the two domestic rivals on a date in early March.
The two former welterweight champions have been trading words for several years - and they've never been close to an agreement to face each other.
But now they are being promoted by the same man in Hearn, who is doing his best to finally get them in the ring.
The two boxers were both ringside on Saturday night at Manchester Arena, and watched Oleksandr Usyk retain his WBO, IBF, WBC, WBA cruiserweight belts with a knockout of Tony Bellew.
The two boxers apparently spoke to each other and shook hands.
Hearn met with Khan's father, Shah, on Monday, to discuss a deal to fight Brook.
Brook will first have to get past his upcoming opponent, Michael Zerafa, on December 8 in Sheffield.
"I think early March is the date that is sort of penciled at the moment," Hearn exclusively told Sky Sports.
"I've seen the footage where apparently Amir shook his hand and said 'Trust me, it's happening'. Hopefully it is. It's just whether it goes early March, or late May."
The biggest sticking point in making a deal is the weight.
Earlier this year, Brook made his debut in the junior middleweight limit of 154 - and he plans to weigh a few pounds less against Zerafa.
Khan wants the welterweight limit of 147-pounds, which Brook agreed to - but the two fighters are at odds when it comes to a rehydration clause.
The Bolton boxer is demanding a clause where Brook is unable to weigh more than 10-pounds above the welterweight limit on the morning of the fight.
"[A rehydtration clause is] something that Amir wants, and it's something that Kell doesn't want," said Hearn.
"Someone has got to give, either way, and either say 'Okay, I will do it, or alright I don't want that.' But I think Amir learned a lesson from the 'Canelo' fight, but that was up at middleweight, which is a different kettle of fish.
"I can understand both arguments, but from a rules point of view, there's no rule why if Kell makes welterweight, why he should have a 10lb hydration clause, unless it's for an IBF title, or some kind of IBF sanctioned event."
