Souza (26-10 MMA, 9-7 UFC) was caught in an armbar by Muniz (21-4 MMA, 3-0 UFC) that ended the fight when an audible cracking sound could be heard. According to a report from MMA Fighting, Souza suffered a fractured humerus in his right arm, but his personal doctor described his condition as being “fine.”
Souza will need to undergo surgery to repair the damage, however, and a subsequent report from ESPN said he’s scheduled for a procedure on Monday.