A video comparing the stark contrast in how KSI and Jake Paul reacted to their respective defeats to Tommy Fury has gone viral.
Former Love Island star Fury has beat the two frontrunners of the YouTube boxing scene in consecutive fights to move to 10-0 in his professional career.
He bested Paul via unanimous decision in Saudi Arabia in February before controversially getting the victory over KSI via majority decision in the Misfits Boxing main event in Manchester on Saturday night.
Fury emerged victorious on the judges' scorecards despite having a point taken off him for a punch to the back of KSI's head in the second round.
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The result was branded a "robbery" by KSI, who claims he will now appeal the "outrageous" decision as he felt he won the fight.
In the ring, while being interview by Ariel Helwani, KSI told Fury: "It's a robbery, bro. How many jabs did you land? You got hardly any shots off.
"You weren't landing. Look at your face. Look at your eyes, look at you, bro."
The Nightmare was so furious that he was seen venting to the judges and kicked an LED screen.
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Paul also came up short against Fury and suffered his first career defeat but interestingly he took the narrow loss gracefully.
He still had issues with how the fight was scored but was much more measured in how he conducted himself.
"All respect to Tommy, he won. Don't judge me by my wins, judge me by my losses. I'll come back and I think we deserve that rematch.
"It was a great fight, a close fight. I got a 10-8 round twice so it is what it is. Look, I've already won in life."
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DAZN CEO Joe Markowski and Matchroom chief Eddie Hearn both felt as though KSI was the rightful winner.
On social media, he had more of a well thought out reaction and reflected his incredible journey from posting videos in his room all those years ago.
KSI wrote: Appreciate all the kind messages from everyone. In the ring and watching it back I feel like I should have won. Either way I feel like I accomplished what I wanted to in the end.
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"This little untalented nerd was able go toe to toe with a professional boxer.
"Use me as the living proof that hard work and self belief can get you anywhere in this life."
Paul, who was in his brother Logan's corner for his win over Dillon Danis in the co-main event, did plenty of KSI mocking on his social media.
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Featured Image Credit: DAZN & Top Rank BoxingTopics: Jake Paul, KSI, Tommy Fury