09/20/2026
I saw a post on a boxing page asking:
“What fighter could beat Muhammad Ali in his prime?”
The comments were pretty much what you’d expect from a boxing page. Ali was the GOAT, and most people couldn’t imagine anyone beating him in his prime.
But as a martial artist, I read the question differently.
They didn’t ask “What boxer could beat Muhammad Ali?”
They asked “What fighter?”
That changes the conversation completely.
If we’re talking strictly boxing, I’m not going to argue against Ali being one of the greatest to ever do it. But once you take the fight outside the rules of boxing, the equation changes dramatically.
Look at another boxing great from right here in West Michigan: Floyd Mayweather Jr.
Floyd is one of the greatest boxers of all time. When he was finished competing against professional boxers, he still participated in crossover events against athletes from other disciplines—but under boxing rules.
And that’s the point.
Why would you expect another athlete to beat Floyd in a boxing match? That’s his world. He’s one of the best ever at it.
But put a boxer into a completely different ruleset and suddenly there are a lot more things to defend against.
Add Muay Thai or Taekwondo and now you’re dealing with kicks, knees, elbows and completely different ranges.
Add wrestling, Jiu-Jitsu and Judo and now you have takedowns, throws, clinch fighting and submissions.
That’s why I don’t think it’s fair to automatically assume that the greatest boxer would be the greatest fighter in a fight with no boxing-only restrictions.
And this isn’t a knock on Ali or Floyd. Quite the opposite.
Their greatness as boxers is exactly why you wouldn’t expect someone from another discipline to beat them under boxing rules.
The interesting question is what happens when you remove those restrictions.
I’ll start with:
🥋 Anderson Silva
👊🏼 Jon Jones
🤼 Daniel Cormier
🥋 Royce Gracie
All in their primes, under MMA rules.
There are plenty of others I could name.
So who would you put on the list?
And remember—the question isn’t:
“Who was the better boxer?”
It’s:
“Who was the better FIGHTER?” 👊