Castillo suffered a cut due to a headbutt, and the fight was stopped in the 6th round, and, by rule when a headbutt is ruled to be unintentional, the fight went to the scorecards.
Castillo suffered a cut due to a headbutt. The fight was stopped in the 6th round. The fight went to the scorecards. This was by rule. A headbutt is ruled to be unintentional.