You probably often hear the term ‘mid-block’ when talking about how teams defend. But what does it mean? We understand as a mid-block as the structure that a team uses when being is out-of-possession and defending in a compact block in the middle third of the pitch. So, the key in order to differentiate between a medium-block and a low-block, is the depth of the block. This defensive strategy, is commonly used for many teams in many phases of the game, where there is no option to go and press high but the team does not want to concede too much space to progress to the opponent. In this article, we will analyze why the defensive line height is so important when defending in a mid-block.