Courtesy: Floyd Mayweather
Floyd Mayweather’s planned comeback is now in real trouble. A production company has filed a $4.65 million lawsuit against the boxing legend. The company claims he took its money, then walked away from two of the sport’s biggest fights.
CSI Sports Events, a company that produces and broadcasts championship boxing, filed the suit in New York. It claims to have paid Mayweather a total of $4.65 million in advances. In exchange, it says it locked up exclusive rights to promote fights against Mike Tyson and Manny Pacquiao. Now CSI says Mayweather has broken both deals.
What CSI Sports claims Mayweather owes
The lawsuit states that CSI paid Mayweather $4.5 million last year for the right to stage a fight with Tyson. The two sides struck their deal in August. Under that agreement, Mayweather stood to earn $14 million for the bout, including a $2 million advance. They announced the fight publicly in September, but it never received an official date or location.
Then, in November 2025, CSI says it reached a second deal with Mayweather. This one covered a rematch with Pacquiao. Mayweather beat him in 2015 in the richest fight in boxing history. Under the new deal, CSI agreed to pay Mayweather $35 million plus 20% of any pay-per-view revenue. If the fight did not land on pay-per-view, CSI committed to paying $50 million flat. Mayweather collected another $2.5 million advance for that event.
The Mayweather and Zambidis fight that broke the deal
One day after CSI paid Mayweather an additional $150,000, a different fight went public. A promoter with no connection to CSI announced Mayweather’s upcoming exhibition against Mike Zambidis. Zambidis is an 18-time kickboxing world champion from Greece. The bout is set for June 27 in Athens.
CSI says this move violates its contract. The company claims Mayweather was bound to fight Tyson before anyone else. Furthermore, it says Mayweather signed a separate deal with another company, EverWonder, to take the Pacquiao rematch to Netflix. That fight would take place live from the Sphere in Las Vegas. EverWonder later settled for $5 million. CSI had no part in any of it.
The company is now asking a court to block the Zambidis fight from happening. It also wants all $4.65 million back.
A legal storm building around Mayweather
This case lands on top of a week of serious legal pressure. Mayweather also faces two felony counts from a separate case filed this week. On top of that, he is suing First Apex Ventures, his former management company, for $175 million over alleged fraud. Notably, CSI claims its advances went directly to First Apex, with Mayweather personally signing off on the deal.
Mayweather has not spoken publicly about the CSI lawsuit. The Zambidis fight in Athens remains on the schedule for June 27, but a court order could change that quickly.
Story credit: TMZ
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