- Study finds high school soccer players suffered hundreds of concussions over 10-year period
- The majority of concussions were due to physical contact between players, much of which is against FIFA rules
- Heading, or the practice of playing the ball off the head, was linked with a third of concussions in high school soccer
(CNN)Soccer has been increasing in popularity in the U.S. as a high school sport, and with the recent victory of the U.S. team in the Women's World Cup, that will likely grow. But so has the number of concussions among young soccer players, according to a new study.