Qualifcations are now underway for the 2014 FIFA Football (soccer in the US) World Cup. Held every four years, the finals last for a month and involve 32 national teams - one of which will win the cup in the final match in Brazil. The World Cup is enormously popular, it's the most watched sporting event in the world. The last one held four years ago drew a total television audience of over 38.8 billion - a billion plus tuned in for the final match alone. In comparison, the Summer Olympics draws about 4 billion total viewers.