Mike Tyson and Roy Jones Jr will fight over eight rounds later this year – but neither will go hunting for a knockout.
The legends – who have a combined age of 105 – have agreed to hold an exhibition fight on September 12 in Carson, California.
But while the former world champions will not wear head guards, they will wear larger gloves and will not be seeking to stop each other.
“This isn’t a situation where they’re going out there to try to take each other’s heads off,” Andy Foster, the executive director of the California State Athletic Commission, told Yahoo Sports.
“They’re just going to be in there moving around the ring and letting fans see these legends.”
Tyson, 54, last fought 15 years ago when he retired on his stool against Kevin McBride while Jones Jr, 51, was an active professional until 2018.
Tyson has been keeping in shape alongside new coach Rafael Cordeiro amid speculation he was planning a return to the ring.
Evander Holyfield, with whom Tyson twice shared the ring, was the leading contender for several weeks.
But Jones has leapt to the front of the queue and recently met with Tyson and Foster via a Zoom call to finalise the bout.
Jones, who won world titles in four weight divisions at his peak, said recently: “Mike is a legend. It would be crazy to receive an offer to enter the ring with him and refuse.
“I had no intention of going back and fighting again but, for the sake of Mike Tyson, I agree to make an exception. For me, this is an opportunity that I cannot refuse.
“Of all those who wanted to go into the ring with him, he chose me. And since he did that, how can I say no?”
Tyson is due to take on Jones at the Dignity Health Sports Park but fans are unlikely to be able to attend due to the coronavirus pandemic.
The fight will be streamed on social media platform Triller and will be pay-per-view.