At UFC 158, Nick Diaz came up short in his second bid to win UFC gold. After the bout with Georges St-Pierre, the former Strikeforce champion told Joe Rogan that MMA might not be what he wants to do anymore.
With the on-again/off-again retirement of Diaz, questions about his legacy in the sport have been raised.
How will his time in the sport be remembered? Will we talk about his incredible boxing skill and jiu-jitsu prowess?
Maybe his aversion to the press will stand out the most. Perhaps people will remember the bad boy from Stockton for his incessant whining.
Diaz never had an issue complaining about his pay, media obligations, judging issues or anything else that seemed to strike a nerve on a particular day.
But Diaz certainly isn't the only, or worst, offender of the bunch. Here is a look at the 10 biggest whiners in MMA history.
Jon Fitch did a whole lot of winning while fighting inside the Octagon.
He simply didn't beat many title contenders. For every Thiago Alves and Diego Sanchez on his resume, there are three Chris Wilson's or Luigi Fioravanti's who padded his winning streak.
Fitch's most common complaint was about being passed over for a title shot. And by "being passed over," I mean that he felt wins over Akihiro Gono, Paulo Thiago and Mike Pierce somehow made him the No. 1 contender.
Never mind that he had a title shot in August 2008 and didn't beat a single ranked opponent since. And certainly don't include the fact that he didn't finish any of the fights after his title shot.
Fitch also deserves whiner points for refusing to sign over his likeness to the UFC Undisputed video game franchise. That move got him fired from the UFC; however, he was quickly resigned.
For a man who has such discipline in his diet and training regimen, it's odd that Nick Diaz is so unwilling to meet the promotional requirements of being a pay-per-view headliner.
Diaz hates anything to do with the press and is quick to complain about everything from a lack of respect from his opponents to poor judging against him.
Bonus points go to Diaz after manager Cesar Gracie insinuated that Nick's UFC 158 loss to GSP was due to a mole in his training camp. Apparently, the greatest welterweight in history can't win a fight without espionage.
Some might have expected to find Anderson Silva on this list. The longtime middleweight champion regularly has a laundry list of demands and has been known for having a thing or two to say about the worthiness of his next contender.
However, the man who actually makes these claims is Silva's manager, Ed Soares.
In January, Soares referred to a bout against Chris Weidman as a no-win situation for Silva, as the champ had "nothing to gain."
It wasn't the first time that the Black House representative has downed a title challenger. Soares once stated that Chael Sonnen belonged in jail, and for that reason, he shouldn't get the opportunity to fight Silva.
I'm not sure, but I don't think criminal history factors into title contention.
Lots of guys make excuses; however, Tito Ortiz has to be the worst offender in history. After losing a UFC 106 contest against Forrest Griffin, "The Huntington Beach Bad Boy" wasted little time in sharing with the world that he came into the fight with a cracked skull.
What's funny is that Ortiz somehow knew about this, but it was missed on his pre-fight medical exam. What's even funnier is the fact that it magically healed between the end of the fight and his post-fight medical.
I don't get enough money. I don't get enough respect. All of my opponents just want to take me down and hump me.
The above statements are paraphrased comments of Rampage Jackson, a former champion who has created a laundry list of perceived problems with the UFC.
Quinton Jackson might be one of the most popular stars in MMA history, but he complains more than a teenage girl about anything and everything.
Now that he has parted ways with the UFC, it is only a matter of time before Jackson finds something else to whine about.
Fedor Emelianenko will go down in history as one of the greatest fighters that the sport has ever known. However, due to his lack of tenure in the UFC, his legacy will be tainted by questions about whether or not he could compete with the monsters of the modern heavyweight era.
M-1 Global founder Vadim Finkelstein is a major reason for Fedor not appearing inside the Octagon.
In 2007, negotiations between the UFC and Finkelstein broke down, despite Dana White also offering contracts to other members of Fedor's team, Red Devil Sport Club.
The major sticking point was co-promotion with M-1 Global on any event that Emelianenko participates. Finkelstein believed that the UFC would have to promote his organization in exchange for the privilege of having Fedor on a card.
After the demise of Affliction, the UFC once again tried to sign Fedor and reportedly offered him $2 million per fight plus a percentage of pay-per-view proceeds. To the surprise of many, Finkelstein stuck to his guns and refused to allow Fedor to sign unless co-promotion was on the table.
Congratulations, Vadim. Not only did you complain so much to make yourself a public enemy to fight fans, but you also prevented the sport from seeing some of the most anticipated fights of all time and negatively impacted MMA as a whole.
Rashad Evans drew the ire of Yahoo! Sports columnist Kevin Iole in 2011 after complaining about having to fight former teammate Jon Jones. "Suga" tried playing the role of the victim and looked for sympathy by publicly wondering if Jones was ever his friend at all.
I feel disrespected by Jon because when I think about when we trained or when we were chilling, was the [expletive] even real? Or was he trying to be a master manipulator and try to manipulate the situation so he could get what he wanted out of it?
Evans would continue to whine leading up to the fight, and he targeted former coach Greg Jackson in the process. The former world champion said that he feels Jackson only cares about himself, despite his this-is-about-the-team philosophy.
At UFC 145, Rashad was shut out by Jones, who won a unanimous decision. Perhaps if Evans had spent his energy in training instead of whining, he would have done better.
Josh Koscheck is one of the most hated men in MMA, and his whining inside the cage and out might have something to do with it.
In a battle against Paul Daley, fans witnessed Koscheck go down from an illegal knee. Or so they thought.
Clearly "dazed" by the "knee," Koscheck took three minutes to recover from the shot; however, the replay shows that the knee missed by a mile.
If only that was the only instance.
Koscheck pulled a similar move in a bout against Anthony Johnson, when a knee was thrown while he was down. The knee connected but not to the head, and surprisingly Koscheck claimed that he was poked in the eye.
Maybe Koscheck is working on his acting skills.
Let's also not forget Koscheck's sob story about why he left Team AKA.
You had to know that this was coming.
Dana White is quick to unleash fury on anyone and anything that rubs him the wrong way. If you're on his list, be ready for the sharp tongue of White to begin spewing hate in your direction.
White can spit venom on anyone and anything, but there is nothing that upsets the UFC president more than someone who turns down an opportunity.
In September, Matt Mitrione turned down a short-notice matchup against undefeated Olympian Daniel Cormier. White wasted little time in throwing shame and guilt on "Meathead."
"All I can say is, I guess he doesn't want big opportunities. I get it. Duly noted."
Really, Dana? Is that what he said? Or did the guy look out for his own interests instead of yours?
Dana has the right to be angry when things don't go as he plans. However, it's not acceptable for him to blacklist a fighter who makes a move that he feels is best for his career.
Sorry if you don't like the finger being pointed in your direction, but no one whines more about what goes on in the world of MMA than the audience who watches it.
MMA fans complain about every matchup that is ever booked, regardless of its entertainment value or divisional relevance.
If a fight looks too good on paper, someone else should have been given the opportunity. Examples include GSP vs. Diaz, Aldo vs. Pettis and Aldo vs. Edgar.
If a fight doesn't look tremendously exciting, but it has major impact on a division's title scene, fans label it as a snoozefest. Examples include Mendes vs. Guida and Evans vs. Davis.
As an experiment, I want you guys to start looking through the comments section anytime a major fight is announced. Read some of the ridiculous complaints that appear on nearly every article.
It's not just the matchmaking that fans are quick to criticize. Let's not forget how commonplace it is for fighters to be vigorously booed inside the Octagon while they jockey for position on the floor.
Grapplers aren't the only ones booed. Fight fans seem to have a tendency to boo action from the flyweight division too. Despite the frantic pace and incredible skill of Demetrious Johnson and Joseph Benavidez, I challenge you to find a flyweight contest where they weren't booed.
Not everyone has an appreciation for the technical skill of ground work, and it would be unrealistic to expect otherwise. However, if you want to watch two guys striking, tune in to K-1.
To those of you who enjoy the sport in all its glory, we're glad to have you on our side. To the complainers who don't like reading this slide, I'm not exactly worried. You were probably going to whine about it anyway.
Andrew Saunders is a Featured Columnist III for Bleacher Report. Following him on Twitter is medically proven to make you smarter and more appealing to women. Do it now!