It has been part of the Summer Olympic Games since 1964, but it's not the most popular competitive sport in Malaysia. Yet, volleyball still features heavily in co-curricular programmes in schools; and go to any beach and you are sure to find a variation of beach volleyball being played. Consultant Orthopaedic Surgeon Dr Harjeet Singh breaks down the physical elements of volleyball and shares his thoughts on why shoulder injuries present heavily in many sports-related traumas.