Many MMA fighters have come and built a legacy in this sport.
Some have become dominant champions, while other fighters have become one and done.
There are some of these fighters on this list who built a reputation by destroying the opposition but have fallen off the elite due to age.
After UFC 126, one thing is for sure, Anderson Silva has solidified his place as one of the greatest fighters in MMA.
It's hard when you mention the greats not to mention one of the founders of MMA in Royce Gracie.
Gracie showed many North American fans Brazilian Jiu-Jitsu for the first time, when the UFC began.
In Gracie's prime, he went on an incredible win streak and defeated several styles of martial arts fighters in the octagon.
Kazushi Sakuraba is one of the greatest submission specialists to have ever competed in MMA.
Starting out as a professional wrestler, Sakuraba knew how to not only use incredible technique, but how to sell a fight and entertain audiences.
At one point, Sakuraba was known as the Gracie hunter.
Sakuraba still remains as the only fighter to have submitted a Gracie in MMA.
Former Pride and UFC heavyweight champion Antonio Rodrigo Nogueira is one of the greatest submission specialists to have ever graced the sport of MMA.
While Nogueira has shown signs of slowing down as of late, no one in the history of MMA has fought and defeated more top 10 competition as he has.
Also, Nogueira is still one of the few fighters in MMA history to have ever worn gold in two of the biggest organizations.
Known as the "Axe Murderer" Wanderlei Silva went on a dominant run in Pride with defeating the likes of Kazushi Sakuraba, Quinton "Rampage" Jackson, Hidehiko Yoshida, Dan Henderson, and Ricardo Arona.
Still to this day, Wanderlei is one of the most exciting fighters to have ever competed in the sport of mixed martial arts.
If you need more proof, almost every middleweight who wins a fight these days calls out Silva after they win.
From 2004 until 2007, Chuck "The Iceman" Liddell was one of the UFC's most dominant light heavyweight fighters.
Liddell had four successful title defenses, which at that time was rare, and defeated the likes of Tito Ortiz, Randy Couture, avenged his loss to Jeremy Horn, and knocked out Renato "Babalu" Sobral.
Matt Hughes will forever be known as one of the most dominant welterweight champions in the history of MMA and the UFC.
Not only did Hughes defeat some of the best, but he did it in impressive fashion.
In his historic career, he has defeated the likes of B.J. Penn, Georges St. Pierre, Sean Sherk, Renzo Gracie, and Frank Trigg.
Baby Jay "B.J." Penn has stunned MMA fans for years with his phenomenal display of Brazilian Jiu-Jitsu and incredible striking.
As of right now, B.J. Penn remains one of two men in the UFC to have ever won titles in two different weight classes.
In the storied career of Penn, he has defeated such fighters as Matt Hughes, Sean Sherk, Renzo Gracie, Takanori Gomi (before he became Pride lightweight champion), and Kenny Florian in dominant fashion.
At UFC 127, Penn will look to continue his legacy as a dominant fighter when he meets Jon Fitch.
Fedor Emelianenko is known as one of the greatest heavyweights to have ever stepped into MMA.
Up until his loss to Fabricio Werdum, Emelianenko had one of the longest win streaks in MMA with 10 years of dominance.
Known in his come country of Russia as an elite Sambo stylist, Fedor's biggest accomplishment in MMA is capturing the Pride heavyweight title, when he dominated Antonio Rodrigo Nogueira to capture the belt.
If Georges St. Pierre hadn't lost to Matt Serra almost 4 years ago, St. Pierre could be tied with Anderson Silva as the no.1 pound-for-pound fighter.
Right now most MMA fans and pundits rank St. Pierre in the top 2 or 3 pound-for-pound, and he has been cited as having the best wrestling in MMA.
St. Pierre has virtually cleaned out the welterweight division and has dominated just about every fighter he's come across.
In April, St. Pierre will get another chance to prove his dominance as a fighter when he meets former Strikeforce middleweight champion Jake Shields at UFC 129.
Anderson "The Spider" Silva solidified himself as one of the greatest MMA fighters to have ever competed when he defended his UFC middleweight title for the 8th time.
Known as the pound-for-pound best fighter in MMA, Silva has showcased a display of striking that has never been seen in MMA.
At UFC 126, Silva knocked out dangerous striker Vitor Belfort with a devastating front kick.
Since 2006, Silva has yet to lose a single fight, continues to set records in the sport of mixed martial arts and has beaten the likes of Rich Franklin, Chael Sonnen, Forrest Griffin, Dan Henderson, Chael Sonnen, Nate Marquardt, and now Vitor Belfort.
The most incredible part about Anderson Silva is that after all the records he's broken and all the title defenses, he may end up retiring undefeated in his UFC career.