Don't tell me why the united was able losing with huge scores against sevilla this day. Look at MU's line up in defensive lines. All of players are just useless defenders. Lindelof, Meguire, Dalot and Bissaka. These are completed useless defenders. 
Man United's defense, in addition to the goalkeeper, were the main cause of this loss as they gifted two easy goals to Sevilla, who didn't refuse the gifts. It's unbelievable how Sevilla is passing every round of this competition while they are suffering in La Liga. However, the systems of these two competitions are different and Sevilla used to play well in the Europa League. Personally, I expected Manchester United to pass as they looked different this season, but Sevilla proved me wrong and continued their superiority over Man United as they didn't lose against them in the last 5 games. In addition, Man United failed to kick out any Spanish team in the last 6 seasons in the European competitions.
One of the notable players today was Youseff En Nesyri, who scored 2 goals, and as he is still 25, I think this player has a chance to play for a big European team.