Having strained my rotator cuff from marathon swimming, it takes a lot of rest to get it to calm down and a very slow ramping up of activity to avoid setbacks. Mine wasn't anywhere nearly so bad that I couldn't move or lift my arm and the recovery period was months. Of course I don't have access to the type of medical and training staff that MLB'ers do, so hopefully it won't be as long.
Neither do the Washington Nationals...
