Mass can cause a problem for an NFL player during a football game by making it difficult for them to move quickly and efficiently. For example, if a defensive lineman is carrying too much mass, they may not be able to move quickly enough to get to the quarterback before they can throw the ball. This can lead to the quarterback having more time to make a play, which can result in a big gain for the offense. Additionally, if a running back is carrying too much mass, they may not be able to accelerate quickly enough to break away from defenders and gain yards. This can lead to the running back being tackled for a loss or a short gain.
