Blot away the pizza sauce with a dry cloth. Do not rub, this can cause the sauce to spread and to dig deeper into the fabric.
Blot at the sauce with a slightly damp, warm sponge. Hot water activates the molecules and causes them to stick to the fabric.
Apply a pre-wash stain remover product to the fabric. Follow the product’s instructions for use.
Apply a grease-removing dishwashing detergent to the stain. Mix in to the fabric well.
Launder per the garment’s instructions. Do not dry the jersey.
Check to see if the stain has been removed. If it hasn't, repeat the pre-wash treatment process.
Dry the garment only after the stain has been removed. If the stain can't be removed, take it to the dry cleaner for removal.