A football helmet’s health warning sticker is pictured between a U.S. flag and the number 55, in memory of former student and NFL player Junior Seau, as the Oceanside Pirates high school football team prepares for their Friday night game in Oceanside, California September 14, 2012. Picture taken September 14, 2012. To match Feature USA-FOOTBALL/CONCUSSIONS REUTERS/Mike Blake (UNITED STATES – Tags: SPORT FOOTBALL HEALTH)