Theres a guy in NC who did something terrible to his knee and couldn't not twist to throw backhand. He played while in a cast and then eventually a kneebrace while just throwing sidearm rollers and standstill sidearms. I'm not sure how debilitating this is Rusch, but you might be able to try that and still get out and play.
It will teach you a lot about your game. Dude now has some of the most legit sidearm rollers I've ever seen.
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