Congolese-US basketball player Dikembe Mutumbo (L) and US gold medalist in athletics Jackie Joyner-Kersee arrive in Copenhagen to supporter the Chicago 2016 Olympic bid on September 29, 2009. The International Olympic Committee (IOC) will vote on the destiny of the 2016 Summer Olympic Games on October 2, 2009 after a final round battle between Chicago, Madrid, Tokyo and Rio de Janeiro.