Floyd Mayweather Shocks Boxing World with Surprise 2026 Comeback Fight Announcement—Opponent, Date & How to Watch

Floyd Mayweather’s undefeated aura is colliding with an unexpected opponent: the U.S. Internal Revenue Service. According to filings first reported this weekend, the IRS is moving to collect roughly $7.25 million in back taxes—and it may ask the State Department to yank Mayweather’s passport if the debt is not settled immediately. The timing could not be worse for “Money,” who is booked for a June 27 exhibition against Greek kick-boxing icon Mike Zambidis inside Athens’ historic Panathenaic Stadium. Promoters have already begun contingency planning because a revoked passport would leave Mayweather unable to enter Greece, putting the six-figure gate and an estimated eight-figure global streaming deal in jeopardy. Just weeks after the Athens showcase, Mayweather is slated to headline a pay-per-view mega-event with former heavyweight champion Mike Tyson, a bout that insiders say could generate one of the richest purses in exhibition history. Yet the Mirror reports that the IRS action places the Tyson clash “in serious doubt,” with venue insurance carriers now reassessing risk. The passport drama also casts a shadow over Mayweather’s long-teased rematch with Manny Pacquiao. The sequel, expected to stream on Netflix from Las Vegas’ Sphere on September 19, has already faced logistical snags; Boxing News Online revealed last week that organizers are scrambling to secure an alternate arena after negotiations with the Sphere stalled. Industry analysts now warn that any international travel restrictions on Mayweather would further shrink the available fight-night windows. Why keep fighting at 49? Mayweather’s camp argues the exhibitions are “legacy entertainment,” but DAZN’s Derek Bilton notes that each outing still nets the five-division king a guaranteed eight-figure payday—even before sponsorships and digital collectibles are tallied. For now, Team Mayweather is racing the clock. If the tax tab is cleared before mid-June, the global tour proceeds; if not, boxing could witness its most lucrative schedule evaporate overnight. Either outcome ensures that Floyd Mayweather will stay exactly where he prefers—dead center in the combat-sports spotlight.