I wouldn't say a loss on Thursday is enough to warrant him being sacked. However, if we lose Thursday and don't beat Newcastle at home on Sunday, then I think it will be time for a change.
If by some miracle we beat both Napoli and Newcastle, I fear he may then be gone by the end of the year anyway. When you look at the remaining fixtures in December, it doesn't look great for us.
Spurs (H)
Everton (A)
Liverpool (A) (cup)
Man City (A)
Liverpool (H)