Tyson Fury has accused Oleksandr Usyk of steroid abuse and branded Anthony Joshua as being 'useless'.
Ukraine's Usyk delivered a stunning performance to inflict the second defeat of Joshua's career and win the WBA, IBF and WBO heavyweight titles.
He said in an Instagram Live video: "I cannot believe that AJ has gone and given Ukraine all the heavyweight belts back, after all my hard work of getting them. You big useless dosser!
"You've let a little steroid man come up from middleweight and set about you and take all your belts.
"It is going to have to take a real British Lancaster Bomber, like me, to go and relieve the useless little steroid head of the belts and get them back to Britain.
"You useless dossers! Bring them to me, the Gypsy King.
"Bring them to me and I will put them in their place and relieve them of the belts again."
Planet Sport reached out to Usyk's team and they laughed off Fury's suggestion of steroid use.