11.   American football, on the other hand, attracts customers with built-in aggression and high hopes and even higher octane levels.

12.   American football, with its ponderous three-hour games with frequent deadening lulls, has a phalanx of on-the-field officials.

13.   And although American football is still more a curiosity than a passion, there was no mistaking the impact the team made upon its arrival in Dublin.

14.   And he had begun developing an interest in American football.

15.   And he says American football has come a long way over there since then.

16.   And Saturday will be the first game of American football for each of them.

17.   As a teen-ager in Owerri, Nigeria, Ifeanyi discovered a photograph of an American football player in full gear.

18.   Asians have probably been the most underrepresented ethnic group in American football.

19.   At the New York Sports Clubs chain there are classes taught by a former American football player who gets his students working on exhausting patterns of dodges and tackles.

20.   Both Parreira and Sacchi are curious, engaging men, and unlike many American football coaches, they have lives outside their sport.