Eddie Hearn, promoter for IBF, IBO, WBA, WBO heavyweight champion Anthony Joshua, wants his fighter to collide with WBC champion Deontay Wilder in 2019.
Joshua is scheduled to fight again on April 13th at Wembley Stadium in London and Wilder is the main target for the opponent.
This past Saturday night at the Staples Center in Los Angeles, Wilder fought to a controversial twelve round split draw with Tyson Fury.
Now there is talk of a rematch between Wilder and Fury for the first quarter of the new year.
But Hearn warns that if Wilder goes in that direction, he might fall out of facing Joshua for good.
"I won't talk about the negotiations we're having at the moment, because I did that last time and it bit me in the bottom," Hearn told Sky Sports News.
"I'm going to stay quiet, keep this mush peeled and shut, and try and make the undisputed heavyweight fight. That's the priority, it's always been the priority, always been the plan. Josh still likes the Tyson Fury fight. I've spoken to him numerous times. He is in camp now in America, and he would love to fight Fury, he would.
"I spoke to Fury yesterday, and just said well done. I take my hat off to him, I was wrong. He proved me wrong against [Wladimir] Klitschko and he proved me wrong against Deontay Wilder. I think what he's done is remarkable. I still believe Anthony Joshua is hands down the best heavyweight in the world. I believe he knocks out Deontay Wilder and Tyson Fury, but maybe I'll be wrong again, but it's a brilliant time for the heavyweight game.
"There is a rematch that could happen between Wilder and Fury. But if Wilder really wants to be the undisputed heavyweight champion of the world, he must fight Joshua next, otherwise we may just all miss the boat on that one. But anything can happen."