Brock Lesnar is reportedly negotiating a shot at UFC heavyweight champion Daniel Cormier in August.
The rivals have been on a collision course since Lesnar stormed the Octagon following Cormier's win over Stipe Miocic last year.
And according to ESPN, a deal is being discussed which would see Cormier put his title on the line late in the summer.
Lesnar last fought in the UFC two years ago when he outpointed Mark Hunt before the fight was ruled a no contest when the wrestler failed a drugs test.
He previously held the promotion's heavyweight title before his switch to WWE.
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Lesnar will feature at Wrestlemania on Sunday and Cormier has hinted he may make a surprise appearance.
“I don’t have a fight exactly scheduled yet but I’ve got my eyes on Brock Lesnar,” he said.
“I may go to WWE’s Wrestlemania and I may go cost him his title over there so he can hurry up and get to the UFC so I can beat him here.”
UFC president Dana White is also hopeful of finally seeing the rivals in the cage.
“Brock Lesnar is doing his thing with WWE," he said.
"But one of the things about Brock Lesnar is, when that guy is ready to fight, he is not shy. He will call me and let me know.
"And to be honest with you, I am hoping to hear from that guy this summer.
“I think both guys really want it, Cormier wants it bad,” White added. “I know Cormier wants it bad, and Brock wants it bad.
"So when two fighters want to fight each other as bad as these two do, I think it’s going to happen.”
