Rugby and American football are two completely different games. Americans refer to rugby as rugby, and American football as football.
Which Version? The US call American football-football and association football-soccer.In the UK we call association football-football,Rugby football-Rugby and American football a girl's game because of all the padding they wear!
It is said that football evolved from rugby and rugby evolved from soccer
Gridiron is American football where as rugby is not
Rugby
American football evolved out of rugby. It wasn't a combination of two games. -actually football was combined from soccer AND rugby.
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.
The football association was formed and outlawed handling the ball. The players of the time split from the FA and formed the Rugby Football Union
Rugby actually preceded games which use some of the principles such as American football Gaelic football. There are two related types of Rugby. Rugby League and Rugby Union.
The wages are increasing in rugby compared to soccer and American football
American football is an overly simplified version of rugby league.
Soccer --> Rugby --> American Football