The video clip prompted fans to ask if Usyk, who has beaten Fury twice, was telling Joshua what he needs to do to beat the Gypsy King.
IS Oleksandr Usyk giving Anthony Joshua tips to defeat Tyson Fury?.
One wrote: "Usyk giving AJ advice on how to beat Fury?".
Meanwhile, Tyson Fury hung up his gloves after his second loss to Usyk back in December.
And it appeared that Usyk was giving AJ a lesson in boxing tactics.
