KSI wants to fight Logan Paul's brother Jake after his rematch with his YouTube rival.
KSI and the elder Paul will clash on November 9 in Los Angeles in order to settle their long-running feud.
And the Londoner plans to turn his attention to Jake, assuming he wins at the Staples Center.
"Who’s next? I’d love to have Jake (Paul). I’d love to break his s***** little skull," KSI told JD Sports .
"I despise him, I hate him. I actually hate him more than Logan. He is actual s***. Yeah, so Jake would make sense."
KSI and Paul have been granted professional licences by the California State Athletic Commission and will dispense with their headguards and pull on 10oz gloves.
And KSI - real name Olajide William Olatunji - claims he could carry on fighting at a paid level in the future.
"I definitely could fight a few other pro boxers," he said.
"Not at a super-high level, but at a level where I feel comfortable and happy to fight at.”
"I would [also] try WWE.
"I wouldn't mind WWE, I’ve done a bit of wrestling, so you never know.”
Meanwhile, Paul also wants to move on from fighting YouTube stars.
"I will have progressed too much to ever fight another celebrity or YouTuber after this," he said.
"I am sparring professional fighters and I am beating them badly, that does so much for my confidence.
"I relied on my athleticism to carry me through the first fight and it almost worked; but now I am a boxer, I am literally a professional fighter and I feel like it.
"I would honestly love to fight in the UFC; I want [president] Dana White to put me in the Octagon."
