Built With Chocolate Milk TV Spot, 'Sloane Stephens Bounces Back'

Professional tennis player Sloane Stephens strenuously practices her swing day and night, volleying, swatting and parrying the ball back and forth across the court in seemingly endless repetition. To keep her fueled through all that rigor, she drinks chocolate milk, which she and America's Milk Companies says contains the natural proteins, carbohydrates and electrolytes that athletes like her need to keep up their games.