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Also called "libero" (Italian for "free"). A defender who sits behind the back line to mop up balls that get through. Unlike other defenders, the sweeper had license to carry the ball forward and start attacks. Beckenbauer, Baresi, and Sammer were famous for combining defensive work with creative passing from deep. The role has mostly vanished because modern teams play high lines and use the offside trap.

A goalkeeper who specialises at playing high and 'sweeping' up behind the defence. They are generally quick to come off their line and are all about snuffing out the threat from the ball over the top of the defence. Bayern Munich's Manuel Neuer is often cited as the perfect example of the sweeper keeper.

A long diagonal ball from one side of the pitch to the other, usually to find space where the defense hasn't shifted yet. When play is congested on one flank, the other side is often open. A good switch of play exploits that. The pass needs weight and accuracy - too short and it gets cut out, too long and it goes out. Full-backs and playmakers who can hit these passes are valuable for stretching the game.

A player who looks good only because of the team or manager they're in. The implication is they'd struggle elsewhere because they're not that talented individually. Sometimes accurate - some players thrive in specific setups - but often used to discredit anyone who succeeds under a great manager. Trent Alexander-Arnold has been called a system player despite his clearly individual passing ability.