KSI has ruthlessly predicted that his brother Deji will lose his upcoming fight with Fousey.
The British YouTuber- real name JJ Olatunji - will fight his sibling's conqueror Alex Wassabi at London's O2 arena on August 27 in his long-awaited ring return. His brother Deji will fight on the undercard when he takes on fellow YouTuber Fousey, and will be looking to pick up his first victory after three defeats.
KSI was left frustrated after his brother's fight with Wassabi and dished out some heavy criticism of Deji's performance in a bid to motivate him for redemption. Now KSI believes his brother may be unable to cope with Fousey's aggressive approach, but has called for his brother to prove him wrong.
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"I think he's going to lose," he boldly claimed during a predictions video uploaded to his second YouTube channel. "Fousey is going to keep going forward, and Deji is going to keep going back, and before you know it, the fight's over. Then, Deji's just there like 'Oh, s***'. "I think it's going to go to decision, and I think Fousey is going to win.
"I hope Deji can prove me wrong, but I don't see him winning. I was working with him and putting the pressure on him and I could have done that for another 20-30 rounds. Cardio is king and he just wasn't fit for his last fight, I don't think Deji mentally wants it and I don't think he has the mindset and cardio to win. It hurts me to say it, I am sure he is training hard."
Deji has lost his first three fights, losing to YouTube star Jake Paul before being handed defeat by TikTok star Vinnie Hacker. Most recently he lost to Wassabi earlier this year after failing to match his opponent's work rate throughout the fight.
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The Olatunji brothers have had an up and down relationship in recent years but now seem closer than ever with KSI seen consoling his brother in the ring who was dejected after the defeat. Deji's training methods have been questioned in the past by his brother, who is uncertain if his brother is taking his opportunities seriously.
However the 25-year-old has now vowed not to underestimate his upcoming opponent, despite admitting he has failed to take his previous rivals seriously. "I'm going to take this fight seriously - 100 percent," he said during a press conference with his rival Fousey ahead of their meeting. "I have never underestimated Fousey.
"In the past I did underestimate some of my opponents. But, I'm not underestimating Fousey. I know he's going to bring his A-game, so it's going to be good. I respect him a lot and it takes a big man to step back in the ring, and I can say that for myself because I have done it."