Think Azpilicueta is out cold, wouldn’t be surprised if his nose/ jaw is broken too, can’t see exactly where the contact was. Mara had no idea he was there and was completely accidental but that’s as bad a boot to the face as you can get.
Ref was going to give 10 mins time for them to score then VAR check showed it wasn't a team in red so he had to reduce it to 4 mins.