As a sports enthusiast, I've often wondered why most sports in the world are played with a round ball. It turns out that the shape of a sphere is crucial for the ball's performance, as it allows for a predictable and consistent bounce, making it easier for athletes to anticipate the ball's movement. Furthermore, round balls can be easily gripped and thrown by players, ensuring optimum control while playing. Additionally, the aerodynamics of a sphere provides a smooth and efficient travel through the air, which is essential in fast-paced sports. In conclusion, the versatility and practicality of a round ball make it the ideal choice for many sports around the world.