‘The Gypsy King’ failed in his bid to become the undisputed heavyweight champion when Oleksandr Usyk defeated him in May.
Fury, 36, gets a second shot at the Ukrainian following his split-decision defeat earlier in the year.
The British heavyweight has suggested he will come in a lot heavier for the rematch which would back up his recent claims that he is going for the knockout in Saudi Arabia.
Posting a photo to Instagram of himself before losing to Usyk, Fury added a caption saying: “Was in the shape of my life, but this is not the Gypsy King”.
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He followed the first post with a photo from a previous fight, with the caption: “This is him, 19st11lb, bruiser.” Should he replicate that weight in December, Fury would have added 15lb since he lost to Usyk, and could mean he has a staggering 50lb weight advantage over his rival