Manchester United may give importance to the Europa League this year. If they do, Fenerbahçe's job will be very difficult in that match as well. I can say that it is a very difficult draw for Fenerbahçe. Still, I don't think there is a team that will give Fenerbahçe much trouble other than Manchester United and Atletico Bilbao. There will be matches where the strengths are almost equal.
Looking the opponent teams of Manchester United in UEFA Europe League seems not get difficult to secure top eight standings position or directly qualifying to knock out round. I think difficult match will face by Manchester United when playing away match against Fenerbahce with their tactician Jose Mourinho have impressive performance in domestic league recently.
But still can't predictable with Manchester United opportunity will secure the top eight position or not because their performance inconsistent regarding in domestic league after winning on the opening match against Fulham and beating by Brighton Albion on second match.
Looking the match drawing schedule, Manchester United have opportunity to secure three points for the first until third matches before facing Fenerbahce on game week 4.
Here more clearly with Manchester United opponent team at UEFA Europe League
vs Rangers (h)
vs Porto (a)
vs PAOK (h)
vs Fenerbahce (a)
vs Bodo Glimt (h)
vs Viktoria Plzen (a)
vs Twente (h)
vs FCSB (a)
Porto is a stronger team than Manchester United, stronger than Fenerbahce and stronger than the teams on this list. I would say that Porto is the strongest team on this list. Even last season when Porto were not doing well, they still managed to give a lot of headaches to the big teams in the European Champions League. In the past when Manchester United had good players and was a strong team, Porto was already able to compete with Manchester United.
Porto has also always been superior to Fenerbahce, even in the past, just look at the games involving the two teams:
In my opinion, Porto will get a lot of points by playing against these teams. Now about Manchester United, honestly, while they had the same owners, they never managed to get far in European and domestic competitions. I don't expect great things from Manchester United. About Fenerbahce, I think that although Mourinho is a good coach and was Porto's coach and made Porto win the European Champions League and was also Manchester United's coach, he has a very limited squad, if he had managed to sign more good players, then he would even be in the European Champions League. That's why I believe he would fail in this competition.