adidasí Trefoil logo was introduced in 1972. The three leaves symbolize the Olympic spirit, linking the three continental plates.Rules of the Game: The center mark of a field is indicated at the midpoint of the halfway line. A circle with a radius of 9.15 m (10 yds) is marked around it.The mascot for the 2006 FIFA World Cup in Germany was a lion named Goleo VI. He had a talking soccer ball sidekick named Pille.U.S. Menís National Team played their first ever game in 1916 vs. Sweden in Stockholm.London's new Wembley Stadium, which opened in 2007, has a seating capacity of 90,000.