Yes they will be a real threat to the other clubs in the group with them. Their recent victories, including the one against the powerful Manchester City, are a valuable asset for them in the Champions League matches. Full of confidence, they will certainly have that, and with that, their motivation will certainly be greater to be the difference in the group they live in.
I just remind other clubs who are members of Newcastle, yes Newcastle is now different from the Newcastle we are used to seeing, they are ready to enliven the competition.
PSG shouldn't underestimate the Magpies in UCL game, because they're dangerous to face. Eliminating Manchester City from the Carabao Cup in yesterday game was quite shocking. We expects the very best from these Newcastle players, Gordon, Isak, Almiron, Wilson, Guimaraes, Willows. Newcastle United shouldn't be classified as average club because they're fierce and competitive towards elite clubs. Eddie Howe is a prominent coach and have uncovered another version of the club, motivating the players to be exceptional on the pitch.