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The 1947 NFL season was the 28th regular season of the National Football League. The league expanded the regular season by one game from eleven games per team to twelve, a number that remained constant for fourteen seasons, through 1960. The season ended when the Chicago Cardinals defeated the Philadelphia Eagles in the NFL Championship Game on December 28. ==Major rule changes== *A fifth official, the Back Judge, is added to the officiating crew. *When a team has less than 11 players on the field prior to a snap or kick, the officials are not to notify them. *An illegal use of hands penalty will be called whenever a defensive player uses them to block the vision of a receiver during any pass behind the offensive team's line. *During an unsuccessful extra point attempt, the play becomes dead as soon as failure is evident. *Roughing the kicker will not be called if he kicks after recovering a loose ball or fumble on the play. *All teams are required to use prescribed standard yardage chains, down boxes, and flexible shaft markers. *Games are no longer played on Tuesdays. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1947 NFL season」の詳細全文を読む スポンサード リンク
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