lamotta is recognized as having had one of the best chins in boxing. he rolled with punches, minimizing their force and damage when they landed, but he was also able to absorb many blows. in the saint valentine's day massacre, his sixth bout with robinson, lamotta suffered numerous severe blows to the head. commentators could be heard saying "no man can take this kind of punishment!" but lamotta did not go down. the fight was stopped by the referee in the 13th round, declaring it a tko victory for robinson.