In regards to Oshie, he went down after he spun clockwise which opens up the hip to groin and or low back issues.
Speaking from experience like many of you, I hurt my low back literally picking up 20lbs of weight and for context I (used to) deadlift 405 with a trap bar. I was 33 when I hurt myself and I’m 36 now. My chiro said my sacrum shifts pretty easily, plus I have two slipped discs which only cause me pain If I reinjure my back. My back really only gets reinjured when my sacrum moves too far to my left side and this provides extreme compression to my discs.
All of this to say, the worst pain I ever experienced was doing a step back jump shot which opened my hips similar to the way Oshie spun. It sounds hilarious and it kind of was for me, I went down like a sack of potatoes and drug my leg to my car. My fiancé had to help me out of my car I couldn’t lift myself up. I missed work and could barely walk for days until my chiro could see me.
Suffice to say I’m sure whatever TJ has injured is much worse than my experience but a low back injury would look par for the course since the the hip/low back/groin all intersect tissue at that hip joint.