The heat is on for Tokyo to work out pre-Games jitters

Two-year countdown begins with sweltering temperatures and unfinished main stadium

TOKYO - The heat is on for the Japanese capital's effort to host the world at the 2020 Olympics.

Since being awarded the Games, which will be the largest ever with 33 sports and 339 events, Tokyo organizers have had to deal with a series of setbacks ranging from stadium and construction delays, natural disasters and a mascot scandal.