You can use the ball as defense in the sport of dodgeball.
you how am use sport ball like that
Track and Cross Country
They are a sport and use a round ball.
you use your shoulder when throw a cricket ball and your hip when you kick a ball
In curling you use a rock or stone for a "ball" that you throw across the rink to get points for your team.
Wiffel Ball is a backyard sport when you use a baseball bat and a plastic ball, basically like baseball.
My favour sport is foot ball