I would like to mention that for any significant injuries we have had recently, the timescale for returns has tended to be slower than people's general first impressions.
Matip - seemingly minor, but now looks like being 1 month+ in the end and even that is a guess
AOC - I remember even myself initially thinking it was a blessing in disguise as it would mean him being out for 6-8 weeks and getting the summer off, instead it was a full 12 months
Alisson - 2 full months out after walking off unaided and with no limp from a calf injury (tbf I actually was relieved at this in the end, as when it happened I instantly feared an Achilles rupture)
Shaqiri - no idea what is even wrong with him, just that he is never available
Gomez - initial estimate, which was almost a year ago, was 6-8 weeks and it was well over 3 months in the end - in reality he never recovered fully that season
I personally am not expecting to see Fabinho until at least mid-January, possibly early Feb.
I feel like we have in general a very robust squad who don't get injured frequently (with one or two exceptions such as Lovren, Shaqiri and Lallana) but when they do, they aren't the sort to be rushed back from. I'm not complaining about that, as we don't have a bad record of re-occurrences. I would be happy if Fabinho was out 2-3 weeks more than people are guessing if it meant he has no further issues with that particular injury for the rest of the season.