Family law cases involving professional athletes or other high-income earners require a strategic game plan, especially when it comes to the determination of child support.There is a common misconception that if one parent is a professional athlete, then the other parent, with a lower income or no income, is automatically going to win big when child support is ordered.This result seemed reasonably likely under the old Illinois child support statute, where, absent a judge using discretion to deviate, child support was …