Football changed greatly from the first World Cup 1930. Players are fitter than ever before, football gear has changed from baggy shorts to tight fitting jerseys.
The game is quicker than ever before and ball technology has played it's betterment.
The balls that were used in the 1930s are very much different from what we are used to now, literally made from a pig's bladder, they are now put together with the science and preciseness of space age technology.
Here is a brief history of the development of the one device that the game cannot exist without.