Ball Sports can require symmetrical or asymmetrical movement. For example golf and tennis are one sided and football is both sides.

They require dynamic ability, agility, fluidity, balance, speed, and power.  All of these qualities will be enhanced with a stable strong platform in the trunk.
The athlete will be capped on the level he or she can reach if their platform is not strong. Strength will come from the skeleton being posturally correct and in alignment in order for the muscles to be functioning at their correct length.