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. 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)

MIrassol players celebrate at the end of the Copa Libertadores group stage football match between Brazil's Mirassol and Ecuador's Liga de Quito at the Jose Maria de Campos Maia stadium in Mirassol, state of Sao Paulo, Brazil on May 7, 2026. (Photo by RAPHA MARQUES / AFP via Getty Images)

MIrassol players celebrate at the end of the Copa Libertadores group stage football match between Brazil's Mirassol and Ecuador's Liga de Quito at the Jose Maria de Campos Maia stadium in Mirassol, state of Sao Paulo, Brazil on May 7, 2026. (Photo by RAPHA MARQUES / AFP via 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)

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)