They aren't just wrestlers, they are tough wrestlers. Wrestlers who fought and brawled and did what they had to do to earn a victory. They beat the hell out of friends and foes and sometimes, even family to get their point across.
You could make the case that any person jumping off a top rope and landing on someone's skull is tough. Or doing a Moonsault off the top rope and landing on another human takes some major stones (and a ton of Tylenol).
But these guys just went about (or go about) their business of being tough and rugged. They get the job done, face or heel.
These are 48 of the toughest wrestlers in the business, ever.