Anthony Joshua has declared Wembley would be an "ideal" venue for the first of his two fights against fellow heavyweight world champion Tyson Fury.
Promoter Eddie Hearn this week said the location of the upcoming fight had been agreed by both fighters, but he did not disclose where it would take place.
A deal is in place for the pair to fight twice before the end of the year, with Fury invited to sign off the arrangements after talks with Hearn in Las Vegas.
Joshua holds the IBF, WBA and WBO titles, while the unbeaten Fury is the WBC champion after dethroning Deontay Wilder last year.
Saudi Arabia has been mooted as a potential location for the fight and may still stage the first clash, even if Joshua would love to tackle Fury in London. He has previously fought both at Wembley Stadium and in the adjacent SSE Arena.
"I've signed my side of the deal," Joshua told ITV's Jonathan Ross show.
"We've sent him a good offer, one I'm sure he won't refuse. He wants the fight, no doubt about it, so do I and more than me and him, the whole public want it. I put my crystal ball out there and I say it's going to happen this year 100 per cent."
Joshua added, according to several UK newspapers: "I'm pretty sure it'll be this year. End of July, early August.
"Where? That's what's the delay, because of this pandemic. We want to have people coming to the venue. It's just finding the right location. For me, Wembley would be ideal."
Mayor of London Sadiq Khan said last week that the English capital is ready to host the lucrative fight, despite the restrictions in the country amid the ongoing coronavirus pandemic.
A number of pilot events are taking place with spectators, in the hope crowds can return to normal capacity levels in the near future.
Snooker's 17-day World Championship began in Sheffield on Saturday with indoor crowds limited initially to one-third capacity, but there are plans for a full house come the final in May. Hearn's father, Barry Hearn, is the chairman of World Snooker.
Fury's most recent three bouts have all been staged in Las Vegas while Joshua reclaimed his titles from Andy Ruiz Jr in a rematch held in Saudi Arabia in December 2019.
The 2012 Olympic gold medal winner fought once in 2020, with Joshua beating Kubrat Pulev at Wembley Arena in front of a restricted number of fans.