Getty Arnold Allen Arnold Allen has put on a dominant performance in the main event of UFC Vegas 117 at the Meta Apex. The British fighter defeated Melquizael Costa after five rounds via unanimous decision. Allen came into the fight with only one win in his last four fights. Costa had won six in a row and was looking to get in the top 10 of the division. Play A Very Strong Performance By Arnold Allen Arnold Allen started the fight strong with a massive punch that put Melquizael Costa on his