Giovani Dos Santos and Ikechukwu Uche each bagged a brace in Villareal's 5-1 victory over Real Sociedad, which saw the Yellow Submarine leapfrog their opponents in the Spanish La Liga table.
Brazil will start the pool as the favourites, while Cameroon, Croatia and Mexico will all be hopeful in what is, on paper, a wide-open fight for a second spot in the knockout phase.
As Mexican players and fans take a deep breath, FIFA.com takes a look back at some of the more hair-raising moments on their tough and torturous road to a 15th world finals.
Villarreal forward Giovani dos Santos will be sidelined for two weeks after suffering a thigh injury during the 1-0 win over Elche, making him doubtful for Mexico's FIFA World Cup qualifying play-off double-header against New Zealand.
David Villa ended his seven-game scoring drought with a double against Real Betis as Atletico Madrid closed to within a point of Barcelona, while Villarreal thrashed Valencia 4-1 at the Madrigal.
FIFA.com caught up with several high-profile graduates from the FIFA U-17 World Cup to discuss their tournament experiences and hear advice for those teenagers to kick of in the United Arab Emirates this week.