Roma is not that strong and they're not stable but if they take this match very serious, they can achieve victory. Porto isn't a strong team too and I believe that whoever among these two clubs that can outplay the other will definitely qualify to the round of 16. I will both clubs have the same strength and it's a perfect match.
Both teams will build attacks very well because it is about who will qualify for the next round and who will be eliminated in this season in the Europa League early. So I also think that the Porto vs Roma match will be a pretty fierce match for these two teams because apart from their respective strengths, it is also about how they implement their best strategy in the match so that they do not lose badly. But I want to see Roma advance to the next round so that Roma can have the spirit to continue competing with stronger teams in the next round.
Of course both teams will try to appear with their best players to get satisfactory results. And in terms of player quality I admit Roma is still quite safe. But in terms of previous meetings in the past few seasons, Porto has a great chance to beat Roma. So in this match if Roma really wants to qualify for the next round, at least Roma does not give Porto the opportunity to score a high aggregate score in the first leg. And if the aggregate score is not too big, at least the second leg Roma will not have difficulty appearing at home to get a bigger aggregate score than Porto. And to be honest, I actually really doubt Roma lately and had imagined if Roma failed to qualify from the play off round.