YouTube superstar KSI has launched a scathing online assault on Andrew Tate, hours after the controversial influencer suffered defeat in his professional boxing debut.
A Weekend of Sporting Defeats and Social Media Spikes
The bitter feud between the two online personalities reached a new peak on Saturday, 20th December 2025. This followed the main event at Misfits Mania, where Andrew Tate, 39, was beaten by Chase DeMoor.
KSI's reaction was swift and merciless. The 31-year-old content creator, who co-founded the Misfits Boxing promotion, had already celebrated Anthony Joshua's victory over Jake Paul earlier that evening. Joshua secured the win after six rounds.
"Now I just need an Arsenal win and Andrew Tate to get knocked out and then this will be a fantastic weekend," KSI posted on X (formerly Twitter). His wish was granted when Arsenal beat Everton 1-0, followed by Tate's loss.
The Root of the Rivalry
The animosity stems from a major shake-up in October, when it was announced that Andrew Tate had replaced KSI as the chief executive of Misfits Boxing. KSI, whose real name is Olajide Olatunji, was reportedly furious at being ousted from a leadership role in the organisation he helped create with manager Mams Taylor.
KSI also has a long-running and deeply personal feud with Jake Paul, stemming from their early boxing matches involving their brothers. The weekend provided a double delight for KSI, with both of his rivals losing high-profile fights.
Following Tate's defeat, KSI triumphantly tweeted: "This is the best weekend I've had this year omg [Oh my God]." He then twisted the knife by sharing a composite image of both Jake Paul and Andrew Tate looking defeated after their respective bouts, captioned: "Christmas came early," with a crying emoji.
Tate's Debut and Defeat
Despite an extensive background in combat sports including MMA, kickboxing, K1 and Muay Thai, Andrew Tate had never competed in a professional boxing match before. He also had not fought professionally in any discipline for five years.
Facing Chase DeMoor, Tate started strongly but visibly struggled with his stamina as the fight progressed. DeMoor capitalised, landing a powerful right hand that shifted the momentum decisively in his favour.
Speaking after the loss, Tate gave credit to his opponent. "I'm gonna have to go back, watch the fight, make a decision but Chase deserves his win," he stated. "I'm really happy for him, genuinely. Better to try and lose than to not try at all."
In a philosophical post on X following the event, Tate reflected: "Most men have never felt the sting of defeat because most men have never even tried." The weekend's events have undoubtedly intensified one of the internet's most watched rivalries, setting the stage for further conflict in 2026.
