FILE - In this Oct. 29, 1939, file photo, Green Bay Packers tackle Buford Ray watches from the bench during a football game against the Washington Redskins in Milwaukee. As the NFL enters its 100th season, what players wear on the field may have changed the most, going from leather helmets and long-sleeved turtlenecks and sweaters to plastic helmets with jerseys and pants almost shrink-wrapped to fit. (AP Photo/Weston Haynes, File)