Actually, Chelsea performance still not stable yet but in last two matches they are stronger team after beating top standings team Tottenham Hotspur and last week before international break out success make favorite team Manchester City get draw. Chelsea on difficult opponent teams for several matches later but they have good started beat Tottenham Hotspur and one points against Manchester City. Net match Newcastle United I don't think difficult opponent team for Chelsea because The Magpies have focus on other important Champion League match few days later after facing Chelsea.
Newcastle United won't loss their opportunity in Champion League and seems they will make rotation against Chelsea to make their effective performance on Champion League match against PSG.
Well they have really performed very well in last two matches and that too against big sides like City and Spurs. They will be very confident right now and secondly they will be having a great boost with Nkunku return who is yet to be 100% fit but is close to return soon. Newcastle is another tough test for them but with the team coordination they are building right now I think they will fight really hard in upcoming match. Newcastle still shouldn't be undermined here because they have a very good squad and it is very tough to get past their defence and yet past their goalkeeper Nick Pope and Chelsea just now have picked their momentum, so it is still hard to say that Chelsea will find it easy against Newcastle.