IMO there are no easy words now even though Chelsea are in relatively good condition but facing Newcastle will certainly not be easy because it is precisely that kind of assumption that makes them able to lose.
Moreover, Newcastle have now been transformed into a very troublesome club after their financial resources changed which of course this will be more complicated for Chelsea.
Indeed, at this time some players especially for the Newcastle attack line, are a lot of gaps because some players have to be in the treatment room but playing home with the support of their own fans at St. James Park this will be a loss if Newcastle will give up just like that.
This will still be a fierce match, Chelsea's revival in the last few matches should be watched out for by the Newcastle team, even though if we look at the quality Newcastle is much better, what Chelsea has done in the last few matches is a serious threat to Newcastle.
It has been two consecutive matches that the Chelsea team has faced strong Premier League teams and they managed to go through it without losing and now Newcastle is also one of the top Premier League teams and Chelsea is likely to be able to do the same thing too.
The large number of Newcastle players who are injured is indeed detrimental for this team and is likely to affect the team's performance, but I don't think it will be significant because a team as big as Newcastle has enough players to maintain the team's performance.