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Alliance of American Football will serve as a laboratory for changing the rules of football

The primary goal of those involved in the Alliance of American Football is not to revolutionize the game, but to find a place in it for themselves.

So when the Arizona Hotshots play the Salt Lake Stallions Sunday night, we’ll see the usual amounts of blocking, tackling, running and passing.

But the AAF also is a football laboratory of sorts. Experiments will be conducted by the fledgling league, and who knows, some of what works might one day be adopted by the NFL and colleges.