When it comes to juice stains, Spot Removal Guide
suggests gently blotting the stain with a paper towel or cloth towel by applying a light pressure to the stain and lifting off, repeatedly. Then, spray lukewarm water directly on top and continue blotting. Next, rinse the stain with warm water and place a dry towel over it with added pressure on top.
If the stain persists, try mixing 2/3 cup water with 1/2 cup white vinegar in a spray bottle and applying to the stain.