Hi All, I seem to be having left shoulder blade pain only on those days when I play singles or two sets of doubles i.e., when I serve a lot. Does anyone have reasons as to why I would have left shoulder blade pain when I serve intensely? BTW, I am a right-handed player. Is it because of technique or spin serves or weak shoulder blade related muscles? If so, what are the remedies that I can try? Also, what can I do to strengthen that area and surrounding area? I am doing thrower's ten exercises (with 1 pound weight) once a week and also doing theraband exercises once a week. Thanks!