LAS VEGAS, NEVADA - MAY 07: Boxer Floyd Mayweather Jr. (L) and kickboxer Mike Zambidis pose during a news conference to announce their upcoming full-contact exhibition match at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Kickboxer Mike Zambidis speaks during a news conference to announce an upcoming full-contact exhibition match against boxer Floyd Mayweather Jr. at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Kickboxer Mike Zambidis looks on during a news conference to announce an upcoming full-contact exhibition match against boxer Floyd Mayweather Jr. at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Kickboxer Mike Zambidis looks on during a news conference to announce an upcoming full-contact exhibition match against boxer Floyd Mayweather Jr. at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Kickboxer Mike Zambidis looks on during a news conference to announce an upcoming full-contact exhibition match against boxer Floyd Mayweather Jr. at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Boxer Floyd Mayweather Jr. arrives at a news conference to announce an upcoming full-contact exhibition match against kickboxer Mike Zambidis at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Boxer Floyd Mayweather Jr. speaks during a news conference to announce an upcoming full-contact exhibition match against kickboxer Mike Zambidis at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)

LAS VEGAS, NEVADA - MAY 07: Boxer Floyd Mayweather Jr. speaks during a news conference to announce an upcoming full-contact exhibition match against kickboxer Mike Zambidis at the Mayweather Boxing Club on May 07, 2026 in Las Vegas, Nevada. The match between Mayweather Jr. and Zambidis will take place on June 27, 2026 in Athens, Greece. (Photo by Candice Ward/Getty Images)