Hand washing with mild detergent, and then hang them to dry. Machine washing and drying is tough on clothes, and is the primary cause of wear and fading. Get enough jerseys and shorts that you can give each set time to dry before using them again. A good mild detergent is a decent quality shampoo. Dandruff shampoo works well to kill fungus in shorts. I was a medic in the Army, where so-called "crotch rot" was an issue with Infantrymen spending lots of time in the field with high heat and humidity, and few showers (and not fun, at least for me, to diagnose). Dandruff shampoo (like Head and Shoulders) was the best non-prescription cure.