Logan Paul has agreed to take on KSI in a fight and he has promised that "this is going to be the biggest event in YouTube history".
KSI called out his fellow social media star after his win over Joe Weller in London and Paul released a video on YouTube accepting the challenge.
Logan is expected to trade leather with KSI later this year. KSI wants to fight in London, Paul wants to fight in America; but they could end up meeting in Dubai.
