Coco Gauff cashes in! US Open champ took career earnings to $11MILLION with Grand Slam win... but it's deals with Barilla, UPS, New Balance and Bose that promise to make 19-year-old one of world's richest female athletes

Not yet legally allowed to drink and just barely old enough to vote, US Open champion Coco Gauff has already earned more in her 19 years than most of us will in a lifetime.