Right handed dd hurt left shoulder while at bat over the weekend

[bmd]

She hit the ball very hard and sent the ball to the fence while everyone cheered she rounded the bases grabbing her left shoulder in agony. Has anyone out there had this happen? Can you give me hints on what to look for that could have caused this???

 

[dominik]

one handed finish? one handed finish is not bad but sometimes you can hyperextend the front of the left shoulder especially if you don't finish the turn.

 

[Comocoach]

DD had a partial dislocation on a bp swing. Femoral head slid out and into the scapula. Deep bone bruise, out for four weeks. She finishes with 2 hands now. Her shoulder was originally injured back in 12u during a home plate collision.