[frockington1]

There are differences between indoor box hockey up in Canada and the open field variety more common in the US (both countries play both of course)

[InitialLastName]

Field hockey is present in the US, but ice hockey is far more popular. This article is about the US/Canadian top-level ice hockey league... I can't say I've ever heard of professional field hockey play in the US, much less a nation-wide league.

[soperj]

They meant box lacrosse.