As the group stage begins this week, Manchester City begins the defense of their Champions League championship.
Manchester City, Arsenal, Newcastle, and Manchester United will represent England in the Champions League.
Newcastle are in a challenging Group F with the likes of French champion Paris St. Germain, Italian powerhouse AC Milan, and Borussia Dortmund.
With games against RB Leipzig, Red Star Belgrade, and Young Boys,Manchester City will be confident that they can easily advance from Group G.
Celtic has a strong group that includes Feyenoord, Atletico Madrid, and Lazio.
Bayern Munich, the Bundesliga champions in Germany, is clearly a concern for United. However, United will feel they have enough to advance because Group A also includes FC Copenhagen and Galatasaray.