MLS Cup 2003 was played between the Chicago Fire and the San Jose Earthquakes to decide the champion of the 2003 season .
MLS Cup 2003 is the eighth edition of Major League Soccer 's championship match .
MLS Cup 2003 , the eighth edition of Major League Soccer 's championship match , was played between the Chicago Fire and the San Jose Earthquakes to decide the champion of the 2003 season .