Well, it would be an insult if it was boxing, but it's a celebrity match for fun, and hopefully charity. Get over it Tyson, it's not real. You're 53 years old. That's an insult to boxing, if it were real. Yeah, Foreman was what, 50 when he last boxed, but he was training and winning matches. With Tyson, this is just to make a little money and have fun.
https://www.stuff.co.nz/sport/combat-sports/121469315/mike-tyson-rejects-sonny-bill-williams-fight-as-insult-to-boxing
https://www.stuff.co.nz/sport/combat-sports/121469315/mike-tyson-rejects-sonny-bill-williams-fight-as-insult-to-boxing