I forgot to mention this, but Pyramid 3/100 come out last week.
One of my articles is in it, expanding the Realistic Injury rules in GURPS Martial Arts.
You can lay this one at the feet of Shawn Fisher, who pretty much literally asked for more of this detail in an email after watching Ronda Rousey lose to Holms. Also, Steven Marsh, who leadingly asked, "Do you have an article that would fit in this issue?"
I pretty much just expanded on what you'll find in GURPS Martial Arts. The article includes breaking jaws, missing teeth, cauliflower ear, temporary disfigurement from injury, and so on. It also has some protective gear (mouth guards and ear flaps), rules for a variety of permanent impairments, and a simplified system if you like the concept but hate to look stuff up.
There is a lot more than just my article in there, but if you like mangled faces, disfigured ears, and long-term consequences to fighting, I've got a couple of pages in there for you.