They are related in the foundations of the two sports. American football is derived from the sport Rugby.
Both Rugby and Soccer are related as there was a disagreement on the set of rules which was going to be created (around 1863). This led to a split in the original committee into the Football Assosiation (otherwise better known as FA) and the Rugby Football Union (known as RFU).
Apart from the origins of the sports, they share few relations, the most prominent being the pitch.. The Pitch for soccer, American Football and Rugby are the same size.
Please see the Related questions below for "What rhymes with soccer?" and "What rhymes with football?"
You can watch football and soccer here free. See related link below
Americans call soccer soccer, and football football!
If you are talking about soccer in Ireland and in Britain, then they are the same sport. If you are talking about Gaelic Football, one of Ireland's national sports, then it is very different than soccer. See the related question below.
Tribal Football, known as Australia's most informative and popular source for football and soccer news. Consider it as the ESPN of football and soccer news. Get news, scores, games, interviews and even shop for soccer-related gear from computer or Smartphone.
In the USA, it is known as soccer. Please see related link below.
# football,ice hockey,roller hockey, and i think soccer.
soccer = football "a game of soccer" = "a football match"
soccer is American for football
football which they call soccer! football to them is soccer!