Floyd Mayweather Hit With More Legal Issues Over Tyson and Pacquiao Fight Agreements

CSI Claims Exclusive Promotional Rights

According to court filings, CSI Sports Events alleges it paid Mayweather $4.5 million in advances last year in exchange for exclusive rights to promote his future boxing events.

The agreement reportedly centered around two major attractions:

• An exhibition bout against Mike Tyson
• A professional rematch against Manny Pacquiao

The lawsuit claims CSI later paid Mayweather an additional $150,000 advance before learning he had agreed to participate in a separate exhibition against Greek kickboxing champion Michael Zambidis on June 27 in Athens, Greece.

CSI argues that agreement violated the exclusivity terms of its contract.

Tyson Fight at Center of Dispute

The lawsuit reveals that Mayweather was set to earn $14 million for the Tyson exhibition. CSI reportedly already paid $2 million upfront toward that event.

Although the fight was initially discussed for Spring 2026 and reportedly targeted for the Democratic Republic of Congo, no official date or venue was ever announced. According to the complaint, the contract prohibited Mayweather from participating in other boxing events before fulfilling his Tyson obligation.

The only exception would have been if Tyson remained unavailable beyond Nov. 30. While Tyson reportedly suffered a hand injury that delayed plans for the exhibition, CSI claims he remained willing to reschedule within the next six months.

Pacquiao Rematch Creates Additional Complications

The lawsuit also details a far more lucrative agreement involving a rematch between Mayweather and Pacquiao.

Under the contract, Mayweather was reportedly guaranteed:

• $35 million plus 20 percent of pay-per-view revenue
• Or $50 million if the event was not distributed via pay-per-view

CSI says it paid Mayweather a $2.5 million advance for the fight.

The dispute escalated when Mayweather allegedly entered into a separate agreement with production company EverWonder for a Pacquiao rematch to be distributed by Netflix.

That deal reportedly included:

• $24.75 million guaranteed purse
• Potential $3.75 million bonus
• $2.75 million advance payment

Netflix later announced plans for a Sept. 19 rematch between Mayweather and Pacquiao at The Sphere in Las Vegas.