Fill out a free World Cup bracket for a chance to win! Everyone who enters has a chance to win an authentic Mexico jersey signed by the team. The top 18 brackets at the end of the World Cup will win gear and prizes from adidas and Niky's Sports. Check out the prizes here. Plus, everyone who enters will receive an exclusive discount code to shop your favorite gear at Niky's Sports. Brackets must be submitted by November 20th and winners will be announced on December 20th.