There's no such thing as 100% in these sort of situations, unfortunately.
I'm using the fact that the pictures suggest it didn't cross the line, and the man who's job it is to decide (and should be best positioned) didn't think it crossed the line.
Therefore in my opinion, it didn't cross the line.
Ermm ok. We'll leave it here because you seem to be changing what you're saying in every post.
We'll never know whether it went in but Carroll shouldn't have given Cech a chance.