I know Pac's been KO'd, but he has demonstrated an iron chin in so many fights. He gets hit and gets hit flush and barely blinks in so many of his fights. It was on display again yesterday. He didn't react to any of Thurman's punches. Thurman is an overrated puncher, but he still hits hard and is a full fledged welter.
Pac’s chin is pretty much like Duran’s. Iron chinned, even though they’ve both been stopped and got knocked out cold by picture perfect right hands by other ATGs. They both can still take a punch really well.