In a surprising move that sent a ripple through the boxing world, Floyd Mayweather Jr. has filed a lawsuit against his former partners at Showtime Sports, seeking a staggering $340 million. The lawsuit, filed in February 2026, names Showtime Networks and Stephen Espinoza, a longtime figure tied closely to Mayweather’s most lucrative era in the sport. At the center of Mayweather’s complaint is an allegation that Showtime and Espinoza helped his former manager, Al Haymon, misappropriate more than $340 million in fight earnings.