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Published 10:31 4 Feb 2016 GMT
Updated 15:21 4 Feb 2016 GMT

One of the offers involved the owner of a super yacht, who intended to stage the fight in front of 120 of his friends.
Everybody in attendance would each pay $1m to witness the fight with no media coverage permitted whatsoever.
Although the 27-year-old divides opinion, it can never be said that he's motivated by money.Explore more on these topics: