Donaire also give his best during his first fight with Inoue. He did succeed against Gaballo and the other guy because he does have the goal to get another chance of rematch with Inoue and that's enough of a motivation.
What is his goal after Inoue 2 would motivate him more but if this is his last due to his age he might not be able to make it again. Inoue is fast and determined to win it all. He isn't called Monster if he isn't a monster.
He wont be called a monster for nothing but as you can see in all of his fights which turns out that he isnt really that tired that much nor having taking lots of damage or being punched but with Donaire you could really
see that he was bit struggling and even take some injuries on that time which did really make things a little bit harder for him.For sure he would really be trying to avoid as much as he could on this upcoming rematch.
This is something that he should really be that confident even though Donaire is old but he had still some power that could take him down if he would really be that careless.