Conor McGregor has vowed to get his revenge on Floyd Mayweather and has sent a message to Mike Tyson. Mayweather beat McGregor in 2017.
The former two-weight UFC champion has long called for a rematch, despite Mayweather insisting he is retired. McGregor promised to win any second instalment.
"Thank you Mike, and just know that for the inevitable rematch, with the knowledge I now hold of Floyd’s style, plus under the tutelage of my old school boxing coach, I will crack the puzzle, and I will beat Floyd," said McGregor.
"I promise my life on it; it is great to see you back Iron Mike."
Tyson is considering a ring return at the age of 53.