Pain in the upper back and neck is common. It can be acute (of sudden onset and painful) or can gradually come on through poor posture and other factors.
Some sports injuries in the upper back include: costovertebral joint sprain, Intervertebral sprain, Kyphosis, Inflamed muscle attachments, scheuermanns disease, and tight muscles in the upper back and neck.
Sports injuries in the neck include: whiplash, cervicalgia, radiating neck pain, stiff neck, stingers and burners, spinal cord injury, broken neck, neck strain, nerve root compression, dislocated vertebrae, and a fractured larynx.
Some sports injuries in the shoulder include: frozen shoulder, winged scapula, subacromial bursitis, impingement syndrome, glenoid labrum tear, referred shoulder pain, shoulder instability, pec major tendon inflammation, long head of biceps inflammation, subscapularis inflammation, supraspinatus inflammation, and rotator cuff tendonitis.