KSI put his hands on Dillon Danis in a face-off ahead of their upcoming fight.
The two are slated to meet in the ring on a Misfits Boxing card on March 29 and held a press conference on Tuesday.
The bitter rivals traded jabs and insults before making a purse bet before finishing with the mandatory face-off.
And when Danis got in the face of KSI and talked trash, 'The Nightmare' responded by slapping him in the face in rapid fashion before security ushered in. KSI soon exited the building smiling, with Danis completely and utterly irate and desperate to try and get back.
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KSI's actions appear to be a response to Danis throwing coffee over him in a press conference ahead of a bout that was cancelled a while back.
KSI was initially supposed to face former Chelsea star Wayne Bridge in the main event at the Manchester Arena but the former football withdrew from the bout due to "deeply personal" comments which affected his family and "crossed a line".
KSI had goaded Bridge about claims his ex partner Vanessa Perroncel had an alleged affair with former teammate John Terry.
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In search of a replacement, KSI's team reportedly reached out to a number of UFC fighters - including Nate Diaz, Donald Cerrone, Tony Ferguson and Jorge Masvidal.
However no agreement could be reached and on 4 February it was announced that Danis would be stepping into the boxing ring for only the second time.
He was supposed to face KSI at Wembley Arena in his boxing debut in January 2023 but pulled out due to issues with his preparation and making weight.
The 31-year-old finally got into the ring against KSI's business partner Logan Paul in Manchester in October 2023 and after a bitter build-up, lost via disqualification after attempting a guillotine choke in the closing moments of the six-round fight.
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KSI and Danis are facing off in a cruiserweight bout on the 'Unfinished Business' card, which also sees Darren Till return to the ring for a second professional encounter against Darren Stewart.
Topics: KSI, Dillon Danis
Josh Lawless