JAKE PAUL vowed that he would knock out Conor McGregor in MMA or boxing - as he claimed to have a 'right hand from God'.
McGregor posted a video hit pad as he recovers from a fractured tibia he suffered in July.
Jake Paul vowed Conor McGregor to be knocked out in 'boxing' or MMA
But YouTuber-turned-prizefighting star Paul - who has continued his one-sided feud with the Irishman - mocked the workout video.
He wrote on Instagram: "This embarrassing @thenotoriousmma.
"Open your chin and keep your head still for the PRBLM CHIL right hand of God."
Paul followed up with it on Twitter and added: "I would KO Conor boxing or MMA." Right hand of God
After McGregor's 2-0 win over 'AnEsonGib,' an online rival and ex-NBA player Nate Robinson, the American began calling McGregor out.
He won the fight three times more, defeating former UFC fighters Ben Askren and Tyron Woodley by points and by knockout.
McGregor, 33 years old, is still interested in a mega-money boxing match, but he has not given up on his pursuit.
He did however respond to Paul's recent KO of Woodley and to the reported sales of pay-per-views.
Free Bets: Get more than PS2,000 in NEW CUSTOMER DEALSMcGregor stated to The Mirror, "Who knows?" Never say never."
He said, "I didn’t see the Woodley fight. It made only a few thousand purchases. It was online.
McGregor's 2017 ring debut was lost in 10 rounds to Floyd Mayweather (45), boxing legend.
UFC fighters cannot compete outside the promotion. The crossover clash is a unique event that has never been repeated since.
McGregor, 33, suffered a terrible leg injury against Dustin Poirier. He lost the fight to doctor stoppage.
He had surgery and is now undergoing rehabilitation ahead of the UFC return later this year.