It is their job to make it as difficult as possible for the opposition to get a clear sight of goal.
As a significant amount of a team’s work in a low block comes close to or in the penalty area, players must maintain their positions for long periods. Defenders are constantly tested under prolonged periods of pressure, both to stay compact and make individual defensive actions to clear the ball, block shots and challenge for crosses. It is their job to make it as difficult as possible for the opposition to get a clear sight of goal.