Close the space is a drill primarily designed to improve defensive pressure in midfield. However, it can also be used with more of an offensive emphasis to help players work on getting away from their defender and finding space.
Swarm the ball carrier is an excellent drill to help players work on aggressively pressing an attacker to try to win the ball back. This drill was inspired by Barcelona’s six second rule. When Barcelona lose the ball, the nearest two or three players apply immediate pressure for six seconds because this is when the opposition is most vulnerable to lose it. If the team can’t win it back in six seconds, they drop into an organized defensive structure.