Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. David Walter LaFary (born January 13, 1955 in Cincinnati, Ohio) is a former American football tackle in the National Football League for the New Orleans Saints. LaFary attended Purdue University, and played tackle for La Salle High School. American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football.