Tyson Fury has claimed Anthony Joshua will be beaten by Charles Martin when the two meet in April, according to Sky Sports.
Speaking prior to the official announcement that the two will fight for the IBF world heavyweight title, Fury discussed Joshua's chances against the current holder.
"Charles Martin is not an easy fight for Joshua," he told World Boxing News.
SUBMIT AN ARTICLE
Apply to become a GMS writer by signing up and submitting a 250 word test article: http://gms.to/haveyoursay5
"If I had to put my money on it, I'd say Charles Martin stops Joshua as he's a 6ft 5in punching southpaw with combinations, who's not afraid of people just because they've got muscles.
"It's a difficult fight and this could be a banana skin pretty similar to Tim Witherspoon versus Frank Bruno or Tony Thompson versus David Price.
"They are the two that spring to mind for the heavyweights with the Americans coming over when it's supposed to be easy [for the British fighters] and then they get chinned."
Current British and Commonwealth heavyweight champion Joshua, 26, has knocked out each of his 15 opponents during his professional boxing career and is widely tipped to dominate boxing for years to come.
When asked about the Englishman's readiness to fight at the top, Fury appeared sceptical.
"Eddie Hearn [Joshua's promoter] might be trying to cash Joshua in at the moment because he saw vulnerability as Dillian Whyte nearly had him out with a left hook.
"Maybe someone with a bigger punch and a bit more experience would have followed him up and got him out of there.
"If I had landed that shot Dillian landed on him, he wouldn't have survived. Same goes for Wladimir Klitschko, David Haye or Deontay Wilder."
Joshua has also been linked with a fight against fellow Brit David Haye, who recently announced his return to professional boxing with a clinical first round knock out of Mark de Mori.