Football Guide: Positions, Rules and Health Benefits

NFL football positions carry specific responsibilities ranging from offensive line to special teams. Learn the official size of an NFL football and the health benefits of playing this high-impact sport.

What Is the Football 10 Second Runoff Rule?

Published Nov,09 2011 | By Jeff Gordon

NFL and NCAA football officials use the “10-second runoff rule” to punish teams for committing certain penalties that stop the clock in the final minute of either half -- or in the overtime period, in the case of NFL games.