Tyson Fury admitted he is unsure if he will ever meet Anthony Joshua in the ring, even though the two heavyweight world champions have agreed a two-fight deal.
Last month Fury confirmed the two Britons - who own all of the four major heavyweight belts between them - had reached an agreement over a pair of bouts to take place in 2021.
However, Fury has more pressing business to take care of first as Deontay Wilder has invoked a rematch clause for a third bout against the man who took his WBC belt in Las Vegas in February.
Joshua, the IBF, WBA and WBO champion, is due to fight Kubrat Pulev later in the year while he will have another hurdle to clear should Oleksandr Usyk enforce his mandatory shot at the WBO title, which his camp has suggested they intend to do.
All of that has led to Fury doubting whether the proposed all-British showdown between him and Joshua will ever come to fruition.
"If it's supposed to happen... I'm not convinced it is," Fury told iFL TV.
— TYSON FURY (@Tyson_Fury) June 24, 2020
"I never have been convinced. Never, never, never have I ever been convinced that I will fight Anthony Joshua. How can I be convinced? If he's got to fight Pulev and if he's got to fight Usyk, how can I be convinced he's going to get through those fights without losing?
"How can I even be confident I'm going to smash Wilder? Wilder can absolutely blitz me in round one with one big right hand, good night Vienna. That would put a hell of a wedge in the door. This is why I hate talking about fights that don't really exist yet.
"I have to tell the truth because that's what I'm known to do. Can I honestly say this fight is going to happen, a million per cent, me and Joshua? I can't. But providing we both get through our upcoming fights, then I know it's going to happen."