When I was coaching had a girl that happened to one day warming up for first game. Couldn't get out of first inning and no matter how much tried to fix over next few weeks wouldn't get better. Decided to stop for season.
Thanks. I had another girl with a similar problem a few years ago, she quit pitching before we could even begin to start working on the issue.
I've had girls who's arm was away from the body but, I've never seen anything like this. And it's absolutely incredible to watch the arm progressively get further away with the more of the wind up we do. As I mentioned, I had her break it down to the point of doing wrist flips basically, her arm was tight to the body. We'd slowly start with the arm going up higher, working towards doing what you guys call the "K" drill. But, once her arm would go as high as level with her shoulder, she could not bring it down close to the body. The forearm, hand and ball automatically go away from her body like trying to push 2 magnets together. It's the weirdest thing. I was hoping someone here would know a fix.
With mine it became almost like a side-arm throw rather than underhand whip. At first I was certain it was an injury because her dad was crazy about getting in like 1,000 pitches per week year round, but they never found anything.
The season she started back up we had also moved up to the 12" ball, so maybe the heavier feeling helped for a while. Which makes me think the weighted ball could be good idea. We didn't try that and in hindsight wish I had.