Last October, Fury and Ngannou squared off in a lucrative showdown and the contest allowed Ngannou, according to Fury, to earn his biggest ever payday.
In the actual fight, Fury survived an almighty scare as he was dropped by Ngannou before escaping with a split decision victory.
Despite the fight long being over, some animosity still exists between the fighters, and it wouldn't surprise anyone to see both men renew hostilities at some point in the future.
Fury, currently in Saudi Arabia getting ready for his May 18 showdown with Oleksandr Usyk (shown live on DAZN PPV), is likely to be in attendance for Ngannou’s upcoming fight with Anthony Joshua, and he’s had plenty to say about his most recent rival.
"He should be thanking me really," said Fury when speaking to Sky Sports. "Through all his UFC career he made about a million dollars, and he made six or seven against me so he should be thanking me.
"Instead, I've had to tell him off in front of a load of people because he's having a lot to say on camera after I gave him his biggest pay day. He's ungrateful."
Live on DAZN PPV: Anthony Joshua vs. Francis Ngannou on March 8. Click here for details and how to purchase.