The chin's a worry - and the fact that we're worried about it tells you he got hit too cleanly by a guy who's 4-1 with a major disadvantage in height, reach, and handspeed.
True, he doesn't use head movement, and he should know that the other guy's only chance of catching him was the overhand left. Still, I'm looking for him to make himself known in the most stacked division in boxing.
