Who is the UFC’s greatest? Jon Jones? Anderson Silva? Georges St-Pierre? Royce Gracie?

The UFC is trying to establish a list of its greatest fighters of all time – and we need your help!

As we count down to UFC 200 on July 9 at T-Mobile Arena in Las Vegas, the UFC is compiling a list of its 200 greatest fighters as determined by a panel of experts including UFC Rankings voters, top MMA journalists, FOX/UFC analysts, play-by-play commentators, Fight Metric statisticians and you, the fans!

Have your say using the poll below and let us know who you think should be picked No. 1.

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The final list will be revealed in a special six-part countdown series called UFC 200 Greatest Fighters of All Time. The series premieres May 29 at 12:30 am ET/9:30 pm PT on FS1 with new episodes airing through July 3.

As you make your decision, please note that any fighter who has competed inside the Octagon from UFC 1 up until UFC 200 is eligible for consideration, and fighters are being judged on their entire body of work in mixed martial arts. Contributing factors in the decision will include: championship reigns, win-loss record, caliber of opponent, era in which they competed, athletic innovation and historic relevance.

Help choose the UFC’s greatest fighters of all time, and vote now!