I don’t think either one of these fighters is great and they have similar skill sets however Mosley Jr is the clear A side in the fight which will probably make the judges favor him. Olivas is also a little bit of a journeyman for top prospects and may go into survival mode as long as Mosley Jr puts it on him early.
I think Shane Mosley Jr will win a decision due to being slightly better fundamentally along with being the A side and having more notice for the fight as Olivas is a late replacement. I don’t think he’ll stop Olivas as hes tough and has never been stopped even though hes fought very good prospects. Olivas can potentially cause the upset as he does have some power and generally comes to fight.