"Anthony Joshua is a poor man's Frank Bruno", wrote the Morecambe-based heavyweight.
Joshua, who now holds Fury's former IBF heavyweight belt, will be battling the Ukrainian at Wembley on April 29 to add the WBA (Super) and IBO belts to his own.
Joshua, the reigning International Boxing Federation title-holder, will face Wladimir Klitschko of the Ukraine in a world title fight at Wembley Stadium later this month in front of a British post-war record crowd for a boxing match of 90,000.
That prompted a swift reply from the undefeated Joshua, who claimed Fury always surfaces before his fights and telling him to come to Wembley to make his point. "X2 ringside tickets dn't bring a plus 1 it's for ur fat ass", he replied.
With Fury out of action, Joshua has established himself as one of the world's leading heavyweights. Know your place chump! "I've been working very hard out here in CT in training camp so I'll be in great shape come fight night and I'm just really looking forward to it now and being part of such a historic event".
Joshua shot back: "Shut up and give me a date when you'll be back! I ain't going nowhere".
Showtime will exclusively show the fight live on April 29 in the United States with the broadcast commencing at 4:15 pm Eastern time in the US.
"I'm not usually one to look back but I liked the concept for the short film", he said.
"Everything in between; all the things I have done and all the people that have supported me, have made me who I am and this film illustrates that".