 Within seconds of the opening round, Chavez dropped Haugen with a straight right hand, but rather than dispatching him quickly, pulled back with the intent of punishing him for his pre-fight remarks.After several more rounds of punishment, Chavez dropped him again in the 5th round, and after delivering another barrage of punches, the referee intervened and waved it off.It marked the first stoppage loss of Haugen's career.