DFP'ers checking in to see if any of your pitchers have dealt with upper back soreness. I have a ten year old pitcher that started experiencing some upper back pain/soreness the last month. It occurs only when she pitches, and subsides by the following day. Some recent changes have been throwing a rise ball, although not a huge number of pitches, and possibly some recently picked up bad habits mechanics wise (she's 10 and her mechanics go with the ebbs and flows of her feelings). She was evaluated by a physical therapist that didn't seem to concerned with the soreness and advised an exercise routine to strengthen the core and upper back, as well as improve posture. Have any of you had a pitcher that dealt with this type of soreness? Any ideas on what could help?