Yawn. The only american football matches I've found interesting enough to be worth watching are the Lingerie Football League games. They are just as fake as the NFL, but at least it's not boring as paint drying.
Real athletes play Rugby Union, like the world champion All-Blacks as seen here performing the pre-game Haka against Wales : (Note that Wales have not won a game against New Zealand's All-Blacks in 63 years).
New Zealand rugby can field an international test series against any nation, and a global super rugby series of where 3 of 4 regional semi-finalists were NZ teams, including the super-rugby series winners & still have enough players to field a small group of second rate players for the Olympics Rugby Sevens without compromising the important contest of international rugby matches against the Aussies.
It is a testament to New Zealand rugby when the coach of the national team says that he doesn't care about olympic gold medal efforts, as that pales into comparison with back to back victory in the world cup and domination of other national teams in national tours, let alone when the NZ Waikato regional team humiliated Wales in June.
Perhaps I'm spoilt by the interesting and challenging game of Rugby Union, I know that it's not the same when the players wear so much armour they can have a heart attack just from running with the ball.