Do you think Wlad could take that tua left hook with that weak chin? I bet Wlad goes down in training all the time. His chin is just as weak as Michael Grant's.
In my mind Bob Sheridan is doing the call "A big left hook from Tua and Barrett is wobbled, he's holding on!"
Wlad doesn't get hit much in fights, or in sparring I'd imagine. Which is why his chin hardly gets tested, and another reason why it's not great.