TYSON FURY cheekily teased Anthony Joshua after his heavyweight rival posted a powerful training video online.
Fans are eagerly awaiting a Battle of Britain match-up between the pair, which is in the offing for next year.
But they both have serious challengers to contend with first, in fights delayed due to the coronavirus pandemic.
Ahead of facing Kubrat Pulev, Joshua showed off his power in the gym, posting a clip of his brutal right-uppercut, left-hook combo on Instagram.
At one point, the 30-year-old knocked his trainer off his feet as onlookers gasped in awe.
Joshua captioned his clip: "Beauty in violence."
And Fury, 32, was certainly left impressed.
He retorted on his Instagram stories, cheekily writing: "Omg [Oh my God]. This powerhouse.
The Gypsy King was in a playful mood on Wednesday, posting a number of stories in reply to his rivals.
KNOCKOUT BLOWWatch Joshua show explosive power in training as he bulks up for Pulev fight
PUNCHLINETyson Fury warns Johnny Nelson not to 'kiss my arse anymore' after backing AJ
SYK OF ITTyson Fury predicts outcome of AJ vs Usyk... but thinks pair will never meet
FACE THE USYKChisora v Usyk confirmed for October 31 with Brit to finally take on P4P star
FROM RUSSIA WITH GLOVEFury will 'most likely' spar KO artist Davtaev before Wilder trilogy
BRIGG TALKERBriggs says 'tag me in champ' as he volunteers to replace Jones in Tyson fight
A clip of Andy Ruiz in the gym earned the review: "Lovely combo."
While Fury captioned a selfie of Deontay Wilder: "We'll hello [sic]."
A trilogy contest between Fury and the American could take place in Las Vegas in December, although promoters are desperate to find a time and location where fans can attend the WBC contest.