There is American Football and then there is Football for rest of the world. American Football is the most popular sport in USA and Football is the most popular sport in the world. These are very rough sports and you have to be in great shape to be able to play football. 5 % of injuries in soccer are caused when players are celebrating goals. Professional player run about 10 miles in a single match which is more than any other sport. “Your love makes me strong. Your hate makes me unstoppable.” See below for some of the best football wallpapers.