It was a pity that none of Porto and Frankfurt were able to make a bigger progress in the Champions League by being eliminated in this round. I thought that maybe one of them would do even better just as Villarreal did last season. Of course it isn't easy at all for an average team to make it to the semi finals very often. Porto actually had some potential for the quarter finals as they fought really well against Inter but they missed it by a slight margin.
But I can't say the same for Frankfurt. They were really desperate against Napoli in both matches and the defeat on aggregate was really heavy.