PFL 4: Claressa Shields earns come-from-behind TKO of Brittney Elki in MMA debut (Video)

Claressa Shields stole the show in her MMA and PFL debut, getting the TKO win over Brittney Elkin. Claressa Shields and Brittney Elkin entered the PFL octagon in a prototypical boxer vs. grappler matchup. From the opening bell, Shields attempted to end the fight fast with some powerful right hands...