Rafael dos Anjos stunned UFC lightweight champion Anthony Pettis with a dominant performance to become the first Brazilian to win the 155lb title . All three judges scored the fight 50-45 to dos Anjos who started aggressively and never slowed down as Pettis was left unable to see out of his right eye . Earlier , strawweight Joanna Jedrzejczyk was crowned Europe 's first female champion when she stopped Carla Esparza in the second round . Rafael dos Anjos delivered a dominant performance to beat Anthony Pettis and win the lightweight title . Dos Anjos controls the fight as Pettis struggles to gain momentum in their title bout in Dallas . Dos Anjos looks to land a left knee as Pettis is backed up against the Octagon wall . Pettis could barely see out of his right eye as he suffered sustained punishment at the hands of the Brazilian . Dos Anjos celebrates his win against Pettis with his team and his new lightweight belt . 'Everything went perfect during the fight , ' dos Anjos said . 'Our strategy was hit hard and make him afraid of my punch and my hands . ' The 30-year-old fought with a knee injury picked up in training three weeks prior to the fight and will now undergo an MRI scan . Pettis rallied late in the fourth round , but it proved too little , too late . 'He hit me with a left . First punch he threw , I could n't see out my right eye , ' Pettis said . Undefeated Jedrzejczyk , meanwhile , looked impressive against Esparza . The 27-year-old Pole backed the champion up against the Octagon with a flurry of punches before the referee stopped the scheduled five-round bout with less than a minute of the second session remaining.. Joanna Jedrzejczyk needed less than two rounds to stop Carla Esparza and win the strawweight title . Jedrzejczyk collapses to her knees in celebration after becoming Europe 's first female UFC champion . Poland 's Jedrzejczyk celebrates after becoming the UFC women 's strawweight champion in Dallas . ' I knew I was going to win , but I did n't expect it would be in the second round , ' Jedrzejczyk said . 'Every day I 'm 100 per cent . That 's why I 'm here . 'Nobody going to take this belt from me . ' 'She did a great job , ' Esparza said . 'There 's never an excuse when you lose . ' Also on the UFC 185 card , Johny Hendricks returned to winning ways against Matt Brown . Having lost his welterweight title to Robbie Lawler last December , Hendricks won by unanimous decision to remain on course for a chance to reclaim the title . British star Ross Pearson was also victorious , stunning Sam Stout with a second-round knockout after landing a left hook . In the heavyweight division , Alistair Overeem won a unanimous decision against Roy Nelson . Ross Pearson returned to winning ways with a second-round knockout of Sam Stout . Pearson jumped on Stout to finish the contest as the referee dives in to halt the punishment . Pearson celebrates his victory over Stout as he bounced back from defeat last year .
Rafael dos Anjos outpointed Anthony Pettis to win the lightweight title . Joanna Jedrzejczyk stopped Carla Esparza to win the strawweight belt . British star Ross Pearson knocked out Sam Stout in the first round . Jonny Hendricks returned to winning ways against Matt Brown .