Porto are used to being in the Champions League, but they have experienced a decline so they have to be satisfied with the place in the Europa League that they got. AS Roma are without Jose Mourinho now, but De Rossi also provides a breath of fresh air for AS Roma's game, moreover in 3 seasons Jose Mourinho with AS Roma he did manage to bring AS Roma to become champions in the Conference League, but after that there was nothing else he could get, even though his record in the European competition was very good. Regarding Manchester United I personally feel doubtful, they may be a big team but their game cannot be expected. In the second week of the Premier League they just lost to Brighton with a score of 2-1 and that makes my doubts even greater, it is still early, but still their record in the last few seasons is quite bad.