When I took my ‘E’ License class, the instructors and handout materials talked about how water was better for re-hydrating youth soccer players than sports drinks. I think that curriculum might be adjusted a bit:

The United States Youth Soccer Association (US Youth Soccer) today announced its partnership with The Gatorade Company. The sponsorship designates Gatorade as the Official Sports Drink of US Youth Soccer, the nation’s largest youth sports organization, with over three million registered players ages five to 19. This is the first time that US Youth Soccer has entered into an agreement with Gatorade.

"Gatorade is excited to add US Youth Soccer to the long list of sports partners that have come to rely on our products to help their athletes compete at their highest levels," said Rachel Mellott, Gatorade Sports Marketing. "Optimal hydration and endurance are essential in soccer and, through our products and sports science institute, we look forward to assisting the world’s leading global sport in a variety of areas, such as athlete education, performance testing and the latest sports science research."