Portugal will most probably be the victors in this match. Slovenia is also a strong team defensively, but Portugal is also an offensive team. We can say that it is like the Denmark-Germany match. Both of these matches are considered as equal matches in my eyes. Portugal of course has the advantage and I don't think they will be eliminated. It seems likely that they will have a good ranking this year.
Despite the intimidating number of quality players in the attacking line of the Portuguese national team, they've not been able to score to many goals in the ongoing UEFA Euros Championship. Their shocking defeat in the hands of Georgia yesterday was almost never predicted by anyone but I think that defeat will also make them to sit up ahead of their games in the knockout stages of the competition so against Slovenia, I expect Portugal to win the game. The German vs Denmark game I think will be a strong