Bailey was de-balled as a kitten. ;-)
My boy cat, Frankie, often gets beaten up by his sister, Merlin. He has a white face (in avatar) and it shows up. I have had to take him to the vet a few times when the wounds got infected. The vet said that if they are injured at the front end it means that they are fighting back, but if they get injured towards their rear it means that they were scared and running for cover.
Merlin can be pretty mean - she bites me too. ;-)