Star burst fracture of L-5. 90 degree bend of the left leg to the left in a Judo tournament, made several people quit Judo that semester. 180 degree twist of the right leg. Both ending in ACL replacements and meniscus repair.
2 elbow dislocations on other people during competition. First time the guy never tapped during a juji. The second time the guy lost his grip while defending and we just both went in opposite directions. Felt bad for the second guy. The first guy I didn't cause the match ended with me behind on points and it was the first round of the tournament. So he couldn't continue after the match.