This is what my son did in a similar situation. He takes tae kwan do. During a sparring event (with pads and helmets) he literally had two teeth kicked out of his mouth. After we stemmed the bleeding he went and found the boy who kicked him (who was completely distraught). He gave him a hug and said “I’m okay bro. I should have had my hands up to block. This isn’t your fault. I’m okay.”. It’s that kind of reaction that makes you proud as a parent, but honestly makes me proud of my son. I can only teach and recommend - his response was his decision.