Every sport has its fair share of athletes of all different kinds.
They have those who are calm and collected, those who keep to themselves, and of course, the badasses.
The sport of mixed martial arts is no different as they are home to some of the biggest badasses on the planet.
A badass can be somone who brings a cocky swag to the sport, could care less about anyone or anything, or is just down right mean.
The term can also be used referring to something good since some fighters, plain and simple are just badass.
These badasses have been around since the sport of mixed martial arts was first established.
So, the following slides display the 25 biggest badasses in MMA history.
Let's take a look.
Heath Herring entered the sport of mixed martial arts in April of 1997 and has established himself as one badass.
It wasn't necessarily Herring's fighting style that gave him this reputation as his UFC career was as inconsistent as you can get.
Nevertheless, Herring was one of the baddest boys in the business as we can recall him dropping Yoshihiro Nakao after he kissed him on the lips.
While Quinton "Rampage" Jackson is certainly one of the baddest men in the sport of mixed martial arts, he hasn't lived up to it lately.
However, Jackson earned his stripes when he knocked out fellow badass Chuck Liddell to earn the UFC light heavyweight championship.
Jackson's wolf howl and chains help him earn a spot as one of the biggest badasses in MMA history.
While BJ Penn may very well be on the down slope of his mixed martial arts career, he's certainly one of the biggest badasses to have ever entered the Octagon.
Everything about Penn screams that he's one of the baddest dudes known to the sport of MMA—his fighting style, his arrogant attitude and especially his frequency of announcing whatever he's feeling, whenever he wants.
At one point in his career, Fedor Emelianenko was arguably the baddest man on the planet as he went nearly 10 years without having lost a fight.
But, that all changed when Fedor was knocked off the throne by Fabricio Werdum as he went on to lose three consecutive fights.
While Fedor isn't as bad as he use to be, he still belongs in the top 25.
While Don Frye is now 45 years old and no longer fighting, he was one of the biggest badasses in mixed martial arts history.
Frye was a badass in more than one way as his fighting style was one of the most exciting fans have ever seen.
Plus, Frye is one mean mug as his stare downs were vicious and that mustache of his is pretty badass.
If the competition wasn't so strong, Jason "Mayhem" Miller could easily be higher on the rankings as he is one of the baddest men in the business.
Let's be honest, is there anything about Miller that isn't badass?
His appearance, his cocky attitude and his consistency in calling out Michael Bisping earns him a spot in the top 20.
If it weren't for Thiago Silva's mishaps, he'd certainly be higher on this list.
Why isn't he higher? Because he hasn't fought for 11 months and he's lost two of his last four bouts including a No Contest against Brandon Vera at UFC 125.
However, Silva still remains one bad dude and his double arm sleeved tattoos don't hurt his case.
At one point in his career, Gabriel Gonzaga was believed to be the future of the UFC heavyweight division.
Gonzaga joined the posse of badasses after he dropped Mirko Cro Cop with his very own move.
But despite losing five of his next eight fights, Gonzaga certainly deserves a spot as a top badass in mixed marital arts history.
Whether you like him or not, Gilbert Yvel is pretty badass.
We can all recall one of Yvel's finest moments when he bit his opponent Karimula Barkalaev as he was later disqualified from the fight.
But, Yvel doesn't care, making him one badass in MMA.
It's hard to deny just how badass Clay Guida is.
And, unlike most fighters, Guida's badass personality and style have attracted many UFC fans across the globe since entering the organization in October of 2006.
Whether it's his hair, his appearance or his vicious stare downs, Guida isn't your typical citizen.
At one point in his career, Chuck Liddell was considered the greatest knockout artist to have ever entered the UFC Octagon.
And, while Liddell went out the way no man should ever have to, he remains one of the baddest men in the business.
"The Iceman" had a pretty badass mo-hawk as well.
It's hard to believe that UFC heavyweight Junior Dos Santos is only 27 years old.
But, it's not hard to believe that he's one of the biggest badasses in mixed martial arts history as he's posted a perfect 7-0 record since entering the UFC in 2008.
Dos Santos is just one of those guys who is down right badass.
Despite announcing his retirement following his loss to Roy Nelson at UFC 137, Mirko Cro Cop remains one of the baddest men alive.
More recognized for his dominant Pride days, Cro Cop was home to one of the most vicious head kicks the sport of mixed martial arts has ever seen.
While fans are sad to see him go, he will forever be remembered as one of the biggest badasses in MMA history.
Tito Ortiz's nickname of "The Huntington Beach Bad Boy" describes him perfectly as he's one of the biggest badasses in UFC history.
Ortiz has been famously recognized for calling out fellow fighters including UFC legend Chuck Liddell and Ken Shamrock.
Ortiz, plain and simple, is one badass.
Josh Koscheck is arguably one of the most arrogant fighters in the history of mixed martial arts.
But, it's Koscheck's arrogance that earns him a spot near the top of the biggest badasses in MMA history.
"Kosh" is also one of the toughest fighters in the UFC as he recently volunteered to take a fight on just one week's notice.
If UFC fans across the globe didn't know who Paul Daley was prior to UFC 113, they certainly did after.
After being dominated by Josh Koscheck, Daley connected on a huge strike to his opponent's face. The only problem was that it was after the fight was already over.
This is just one example of why Daley is one of the baddest fighters in the history of mixed martial arts.
Anderson Silva showed just how badass he truly is when he danced the night away against Demian Maia at UFC 112.
Disrespectful? Yes. Badass? Certainly.
But it's Silva's dominance over the past several years that have classified him as arguably the baddest dude in the business.
Silva primarily makes the top 10 due to never having lost a fight in his UFC career.
Nate Diaz may get a bad wrap as he is the brother of arguably the biggest badass in any sport, Nick Diaz.
But, when it really boils down to it, Diaz is pretty badass himself.
Diaz has been in his fair share of brawls including his most famous one when he entered the Octagon on Jake Shields in April of 2010.
Cain Velasquez is the current UFC heavyweight champion and has never lost a single fight in his mixed martial arts career.
Velasquez isn't your ordinary badass as he usually keeps to himself.
However, it's his vicious fighting style and swagger that have earned him a place in the power rankings.
Chris Leben may very well be the funniest, craziest and the weirdest fighter in mixed martial arts history.
And, Leben is also one of the sport's biggest badasses of all time.
While there are many things "The Crippler" has done to earn this title, none surpass when he stated he enjoys to be punched in the face because it turns a light switch on in his head.
Now that is badass.
Let's be honest, whether you like him or not, Brock Lesnar is one of the biggest badasses the sport of mixed martial arts has ever seen.
Lesnar, a former WWE superstar made the transition to the UFC in June of 2007 and is a former UFC heavyweight champion.
And, how can you forget his badass remarks at UFC 100 where he called out his own sponsor, Bud Light.
When a lot of UFC fans think of the term "badass," they think of no other than Diego Sanchez.
Sanchez's nickname of the "Nightmare" is more than likely the best way to describe him as he is one of the most intense fighters in the UFC today.
Everything about Sanchez screams "badass."
Wanderlei Silva has been around the sport of mixed martial arts for as long as most of us can remember.
And, over the years, Silva has established himself as one of the biggest badasses in mixed martial arts history.
The Axe Murderer's style, appearance and personality make him one badass.
To some, Chael Sonnen may be considered the biggest badass in mixed martial arts history.
Sonnen has done just about everything in the books as he's called out fighters such as Anderson Silva, Wanderlei Silva, Lyoto Machida, Antonio Nogueira and the list goes on.
Sonnen's gone to national pay-per-view television, the Jim Rome Show and his Twitter to announce to the world exactly what is on his mind.
Uncle Chael might just be the biggest badass of all time.
While we can make a case for any of these fighters and why they should be considered the biggest badass, you can't argue against Nick Diaz being the biggest badass of all time.
Since entering the sport of mixed martial arts, Diaz has done everything a man can possibly do.
He's blown off mandatory press conferences, failed post-fight drug tests, and has even called out fellow fighters including current UFC welterweight champ, George St-Pierre.
Nick Diaz is the definition of badass in mixed martial arts.