I like the under here too. I've been watching the Inter unders since they seem to slow things down in league play when they have a Copa match during the week.
I'm not sure how this one will go since they are both playing for the Copa. I'm sure they will give it their all. That doesn't necessarily mean that they will go all out to score. Both teams are very good defensively.
Maybe I'll have a decision before the match. Good luck mate.