Eddie Hearn plans to present "three or four offers" to the respective teams of Anthony Joshua and Tyson Fury for their heavyweight showdown – and he remains confident the bout will happen.
The British rivals have yet to finalise a date or destination for the first of potentially two fights between the pair in 2021.
Fury - who holds the WBC belt following his impressive win over Deontay Wilder - tweeted a picture saying "the clock is ticking" on Wednesday, along with the words "three days left".
Meanwhile, John Fury - Tyson's father – aired his concerns over the ongoing negotiations in an interview with Boxing Social, citing the financial difficulties in the current climate following the impact of the coronavirus pandemic.
However, promoter Hearn has made clear there are proposals ready to be put on the table before he leaves each side to work out which is the best option available.
"At the end of this week, both fighters and the teams will be presented with all the offers and options on the table, of which there will be multiple ones," Hearn told Sky Sports.
"We're in a good place. I saw John Fury's comments. It's almost like they don't really want the fight. I'd like them to talk it up, rather than talk it down.
"We're quite aware that there has been a global pandemic. We're quite aware that it's not easy, but we're out there grafting away every day to get this done. A little support would be nice, John and Tyson, thank you very much.
"But there will be three or four offers presented to both camps this weekend, then it's over to them to discuss which one they want to take.
"It is a summer fight, that's everything we are working towards. I'm as confident as ever that this gets done.
"I know that there are some negative people out there and people that believe we can't pull it off, but we spend a lifetime pulling things off. I believe we will get this done, and I believe you will see this fight in the summer."
Joshua is the reigning WBA, WBO and IBF champion, having successfully defended his titles with a ninth-round stoppage of Kubrat Pulev at Wembley Arena in December.
The unbeaten Fury, meanwhile, has not fought since his rematch with Wilder in Las Vegas in February 2020.