The Ultimate Fighting Championship has been transformed into a world powerhouse since it first emerged on the scene 18 years ago.
And as the UFC continues to develop itself into an elite class of its own, the personalities of the fighters remain the same.
Like any sport, the UFC has its most popular fighters who are loved by many fans, those who don't have many fans and, of course, those who are hated.
For some reason or another, these fighters have done or said something that has turned fans away, and the chances of these fighters ever becoming a fan favorite again are slim to none.
So, the following slides display the 10 most hated fighters in the UFC.
Let's take a look.
While Nate Diaz certainly isn't anywhere close being hated as much as his brother, his last name is still Diaz.
Two for the price of one.
While Matt Serra has been out of the Octagon for quite some time, his hatred remains alive and well.
However, it wasn't until he took part in coaching in the sixth season of The Ultimate Fighter when fans got a real taste of what Serra was all about.
Why is Jon Jones hated?
Well, I'm not exactly sure, but don't hate the player, hate the game.
The Huntington Beach Bad Boy is far from bad as he's won just one fight in his last eight appearances.
However, one thing hasn't changed about Ortiz and that is how much he is hated.
For some reason or another, Ortiz's attitude or personality have rubbed fans the wrong way over the course of his career.
Josh Koscheck might be one of the toughest and most fearless fighters in the UFC today, but he's also one of the most hated.
The Pennsylvania product is disliked all across North America but most specifically in Canada where he called out a jam-packed crowd and referenced its hockey team and hometown hero, Georges St-Pierre.
Nick Diaz is as laid back as they get.
However, Diaz's laziness has led to missed press conferences, late arrivals to media calls and much more.
However, it's Diaz's personality that has turned many cold shoulders over the years.
A lot of fans find Chael Sonnen downright hilarious.
However, the key word is "some" as Sonnen is one of the most hated fighters in the the UFC today.
Whether it's his frequent calling out of Anderson Silva and many other fighters or just his arrogant personality, fans have come to despise of him.
Brock Lesnar hasn't been around the sport of mixed martial artists long enough for fans to hate him.
Nevermind, that's not true.
Lesnar may very well be the most hated fighter in mixed martial arts today.
Just when you thought we forgot him, Michael Bisping is alive and well at the top of the UFC's most hated fighters list.
There are few fans who have come to appreciate Bisping's arrogance and cold personality over the course of his career.
Bisping may be the most hated fighter in the entire UFC.