Former WBO, IBO, IBF, WBA heavyweight champion Tyson Fury is fully backing Joseph Parker (24-0, 18 KOs) to beat Anthony Joshua (20-0, 20 KOs) - if a unification deal is made.
There are ongoing negotiations for the two champions to face each other in the first quarter of 2018.
Parker holds the WBO crown, while Joshua is the IBF, WBA, IBO world champion.
Parker and his promoter, David Higgins of Duco, have recently begun a wild campaign that centers around Joshua's chin.
They believe the British superstar has a "glass jaw" and won't be able to withstand Parker's power punches.
Last week they held a press conference with the New Zealand media, where they show clips of Joshua getting hurt and interviews from fighters who claim to have chinned Joshua in sparring or the amateurs.
Fury says the rumors are true, because he's heard stories about Joshua's chin for several years.
"Eddie Hearn and Joshua see Joseph Parker as an easy victim, but like that clip (video produced by Team Parker last week) showed – the little fat Bulgarian chinned him, bish, bash, wallop, and sat him down in the corner," Fury said in an interview with IFL TV.
"(Joshua) was a big weightlifter then too and that was a little fat man punching his head in for him. Can Parker beat him? Yes, he can. Parker is as tough as a brick and as game as a pebble and is young and ambitious with no expectations on him. Nobody expects Parker to beat Joshua – it's all about the weightlifter, let's go in there and blast a few out – bash, bash, bash.
"This isn't Muhammad Ali, this is a man built-up believing in his own hype and a man who is going to come crashing down to earth very, very soon. Parker can beat Joshua, he can knock him out. Joshua's chin is dodgy. We know this for a fact. We've seen Klitschko drag him off the canvas, wobble him, shake him, rock him, the young Daniel (Dubois) 20-year-old is supposed to have knocked him out in sparring.
"I've heard plenty of knockout videos and plenty of knockout rumours, and dropped and all that, so we know he can be hurt and hit because we've seen it on TV. Klitschko's done him, a man 40 odd year-old."
