Fireworks explode after the official opening game between Bayern Munich and Germany's national soccer team at the new Allianz-Arena in Munich May 31, 2005. The Allianz-Arena, built for Munich's soccer clubs Bayern Munich and its smaller rival 1860 Munich, will host the opening game of the Fifa soccer World Cup next year and fits 66,000 spectators.(Reuters)

rival : the contestant you hope to defeat（竞争者，对手）