You'd have to think that Donaire would stop Hasegawa at some point, probably while down on points after a bright start from the latter. Hasegawa was a prodigious raw talent but a bit too reckless, defensively naive and open after punching to last the rounds against a huge-hitting counter puncher like Donaire. Montiel stopped this from happening with some good sneaky punching after Hasegawa had really been on top against him. If Hasegawa had had a good chin it might be different, because his footwork, speed and combination punching were all top drawer and he could slip and counter quite well when he was focused. A shame really, he's a fighter I was quite fond of.