Offside has a unique implementation in field lacrosse.
Cox thought of field lacrosse as a gentleman's game that could rise to prominence among collegiate sports.
The rules of women's lacrosse differ significantly from men's field lacrosse.
In comparison with Canada, Americans are much more focused on field lacrosse.
The playing area is called a box, in contrast to the open playing field of field lacrosse.
Eventually it became the more popular version of the sport in Canada, supplanting field lacrosse.
It is also played to a marginal degree in Australia, primarily by players who have played field lacrosse.
"We're still learning the game of field lacrosse," said Frank Nielsen, the Canadian coach.
Even so, field lacrosse did not become completely unfamiliar to American Indians.
Several Indian players compete in field lacrosse for collegiate teams.