Fox has come off worst in what was presumably a fight between cats. He has lost a chunk of fur and skin on his forehead. Talk about looking like a gangster-cat! He has been to the vet today and the antibiotic injection seems to have calmed him down a bit. He has to go back for another on Friday. I did wonder about asking the vet if he could be tranquilised to stop the fighting, but I suspect he would simply get scratched about more.
And before you ask, Yes, he has been neutered.