Superb martial arts skills.
Don’t make me laugh. There’s not one of them that has a decent kick on them. In a kickboxing or TKD fight I’d put money on atleast half of my TKD clubs members whipping both or their arses. Same with the local BJJ and boxing clubs.
Yes, some of them have “multiple world titles” in various martial arts, but that’s often because there are hundred of organisations organising world championships at lots of different weights, age gradings and levels of experience.
Aldo’s ring craft was shocking. He left himself wide open to taking one on the chin. Someone with his experience doesn’t do that. They also don’t panic in the ring.
Single punch knock outs dont happen at the lower weights because there’s not enough momentum in the punches to take someone out.