Jake Paul IMMEDIATELY reacts to KSI's devastating KO of FaZe Temperrr, Logan Paul shows his brother's 'true' reaction

YouTuber-turned-boxer Jake Paul has wasted no time in reacting to KSI’s callout after his rival’s sensational knockout win over FaZe Temperrr.

FaZe Temperrr, who stepped in for Dillon Danis after the MMA fighter pulled out of the bout, was outclassed by KSI inside the first round of their Misfits Boxing fight.

KSI unloaded a series of punches to overwhelm FaZe Temperrr, who was sent crashing to the canvas in front of the audience at Wembley Arena in London.

FaZe Temperrr was unable to climb back to his feet, with KSI making quick work of his opponent in their main-event clash on Saturday evening.

Following his win, KSI didn’t pass up the opportunity to call out YouTube rival Paul for a long-awaited super-fight.

Paul, who is 6-0 in his fledgling boxing career, took to Twitter and teased KSI after the 29-year-old Brit’s clinical victory over FaZe Temperrr.

“I love when KSI wins because it gives him more confidence for him to actually get in the ring with me,” he tweeted.

In a follow-up tweet, Paul added: “I also love that I’m your ‘final level.’ The peak of your career.

“Keep going Haymaker. You will get to the top of the mountain and then the final Boss will gladly knock you right back down to level 1.”

KSI’s Prime co-founder Logan Paul also took to Instagram and shared Jake’s reaction to the YouTuber and rapper’s sensational KO.

An unfazed Jake can be seen in the video (which can be viewed in the video player above) mocking KSI’s callout and claiming that he is “shivering” in his boots.

However, another clip from Logan’s Instagram Stories during the knockout showed Jake’s ‘true’ reaction compared to the aforementioned one, with the younger Paul brother not saying a single word.

Speaking after the FaZe Temperrr bout, KSI revealed that both Joe Fournier and Tyron Woodley are among the fighters on his radar as potential opponents.

“I said I wanted a KO. I said I wanted round one and here we are. I want you guys to understand the levels,” he said.

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“Look at what Swarmz did to Ryan Taylor, look at what Luis Pineda did to BDave and look at what I did to FaZe Temperrr. I’m on a different level.

“We’re going again, ladies and gentlemen, I’m hungry. Joe Fournier, I want a piece of that, Woodley, I want a piece of that.”