In the game of volleyball, technical-tactical elements as well as fundamental and supporting bio-motor skills are frequently utilised. A high level of aerobic and repeated sprint capacity, muscular strength and endurance, agility, quickness, and flexibility are all needed to play volleyball, which is a very physically demanding sport. Volleyball has the traits of a dynamic exercise with measured intensity, with bursts of fast, explosive action followed by a brief period of relative calm. In order to sprint to advantageous positions while attacking or counterattacking, it also demands quick acceleration. In order to provide regional strength and balance, the core is crucial. The core serves as the hub of the functional kinetic chain, supplying proximal stability for the limbs’ distal motion and functionality. For athletes to perform better and prevent injuries, the core stability is essential. The goal of this study is to see how 8 weeks of core training using bosuball affect dynamic balance in professional volleyball players. A total of 26 players will be divided into two groups: experimental group (n= 13) who will undergo sports specific core training with there regular training and control group (n= 13) who will undergo only regular training program. The athletes are selected on the basis of inclusion criteria.  The athletes will be trained for 8 weeks with three sessions per week. 0 week (pre), 4 week and 8 week (post) intervention assessment of all the outcome measure (star excursion balance test) will be taken at 0 week, at the end of 4 weeks, 8 weeks respectively. The data will be analysed using dependent t-test.