Rules of the Game: During a kick-off, the kicker may not touch the ball a second time until it has touched another player.
Mexico's Pachuca defeated the LA Galaxy on penalties to win the inaugual North American SuperLiga in 2007.
Columbus Crew Stadium, which opened in 1999, was the first stadium in the US built specifically for a MLS team. It has a seating capacity of 22,500.
The U.S. Women's National Team went 51 games without a loss between 2004 and 2007.
London's new Wembley Stadium, which opened in 2007, has a seating capacity of 90,000.