Floyd Mayweather’s planned exhibition against Greek kickboxing icon Mike Zambidis this weekend has now been cancelled following a dramatic legal battle that has engulfed the Hall of Famer’s 2026 comeback schedule.
The exhibition, scheduled for Saturday, June 27 in Athens, Greece, became the subject of a recent lawsuit after CSI claimed Mayweather is contractually obligated to fulfil previously signed agreements to face Mike Tyson in an exhibition before a professional rematch with Manny Pacquiao. The company argued that staging the Zambidis exhibition with another promoter would breach those agreements.
A federal court hearing was held this week, with a judge then expected to rule on whether the injunction preventing the Zambidis bout should remain in place. However, since the ruling remains pending, “the Mayweather-Zambidis event will no longer proceed in Athens, Greece as planned on Saturday evening”.
There has not yet been an indication that the exhibition will be rescheduled, and it appears unlikely that Mayweather’s exhibition schedule will move forward until his dispute with CSI is resolved.
That legal battle could also have wider implications, with veteran boxing reporter Dan Rafael reporting that the long-discussed Mayweather-Pacquiao rematch has been pushed back from its planned 2026 date and, if it happens at all, is now expected no earlier than January 2027.
For now, the cancellation leaves Mayweather’s immediate future firmly up in the air. The undefeated former five-weight world champion has remained one of boxing’s biggest attractions since retiring from professional competition, building a lucrative exhibition career around his global drawing power.
Whether that schedule can resume – or whether long-discussed bouts with Tyson and Pacquiao eventually materialise – will likely depend on the outcome of the ongoing legal dispute, which now appears set to shape the next chapter of Mayweather’s career as much as anything that happens inside the ring.