The YouTubers first met in an amateurboxingmatch last year, with the pair battling to a controversial majority draw.
It did not take long for both men to agree to a rematch, with the city of Los Angeles staging the contest.
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And to make matters even more interesting, both men have turned professional for the rematch, meaning there will be no headguards as well as lighter (oz gloves.)
After completing fight week, Paul uploaded a video to hisYouTubechannel, titled “My Final Message to KSI”.
“This is the last video you’ll see of me before I am crowned ‘YouTube champ’.
“We had our weigh-in, we did it face to face and we had our press conference which had extremely memeable moments. KSI apparently doesn’t like math.
“He shoved me when I asked him what 10 x 10 was, it’s very clear to me that I’m deep inside his head. This is the beginning of the gradual breakdown.
“His own coach says he’s not a fighter, he doesn’t bleed but he bleeds internally? That sounds like he needs medical intention.
“I don’t really like trash talking but I’m just good at it because I’m good at thinking on my feet.”