These are all American sports, just to clarify.

NFL: New York Giants
MLB: New York Mets
NBA: New York Knicks and New Jersey Nets
NHL: New York Rangers

NFL: Denver Broncos
MLB: Colorado Rockies (at times <_< )
NBA: Denver Nuggets
NHL: Colorado Avalanche
and the Colorado Crush in the Arena Football League are pretty sweet too. :rocker: