I was doing some rack deadlifts at my gym tonight. On my last set, I felt a considerablly sharp pain on the upper right side of my back (around my teres minor/infraspinatus). I lifted my arm up to feel the area where the pain originated. The area felt hard as a rock and quite stiff. I am concerned that I might have strained/possibly torn something in that area.
It does not hurt much currently, but the area is quite stiff.
Any suggestions for methods to remedy this and/or avoid more serious injuries in the future?
Any suggestion is greatly appreciated.