He was actually implementing some head movement at the start. He avoided a few shots. When he was backing Canelo up though, he was coming in face first, and got caught. His chin isn't good. His toughness and drive are top notch though.
It's bad. He fell down the way Jermain Taylor falls down, like he'd just been hit by Earnie Shavers. Queueing C.T.E. in 3...2...1...