Who is popular today?

With the PFL Challenger Series being brand new, there could be some changes along the way as it unfolds.
      Related StoriesUFC free fight: Bobby Green starches Al Iaquinta in Round 1Austin Vanderford can't picture himself leaving Bellator 275, Ireland without middleweight titleBellator 275 weigh-in results: Gegard Mousasi, Austin Vanderford title fight official; one fighter heavy