This fight has kind of flown under the radar. I didn't know it was happening this weekend but I am very interested. If Donaire wins then I think Inoue would prefer to give him a rematch than fight Casimero. Inoue will be fighting in a few weeks so their schedules line up for a potential fight. We will see how the long layoff has affected each fighter. Donaire is older but Oubaali is also old for the weight class and doesn't have much experience. It is a more even fight than the odds suggest, in my opinion. If Donaire loses then it is time to retire because if he can't beat Oubaali then he isn't beating the other champions.
Exactly, we almost forgot about this fight because it should happen last year but was scratch to the last minute because of the obvious covid-19 on both fighters.
Donaire still has some left on him, so I wouldn't discount that fact. Even if Oubaali strategy is not to engage him early, still good for Donaire as he can preserve his strength down the championship round as I have observed that he gasses out during the Inoue fight that's why he didn't close out Inoue that time.
I also agree that if Donaire losses here, then it could be the end of the road for him. But he has a good chance, I don't know why the odds are like that in the beginning, it seems that Oubaali is overhype at this point in his career and hasn't beaten anyone as good as Donaire.