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A transfer involving players going both ways rather than just cash. Sometimes straight swaps, sometimes player plus cash. Gets discussed more than it actually happens because valuations rarely match up and both players need to want to move. Sounds simple in theory but the negotiations are complicated because you need four parties to agree (two clubs, two players).

A chance so easy that missing it is inexcusable. Open goals, simple one-on-ones, headers from two yards out. When you miss a sitter, you hold your head and your teammates look at the floor. Compilations of missed sitters are popular online because even the best players mess up the simple ones sometimes.

A pass that puts your teammate in danger of getting clattered. Usually a slow ball that arrives right as a defender's closing in at full speed. Called a hospital ball because the recipient might end up there. Careless passing under pressure creates them. Good teammates don't play hospital balls; bad ones get their midfielders injured.

A pass played between or behind defenders for a teammate to run onto. The weight has to be perfect - too soft and the keeper gets there, too hard and it runs away. The runner and passer need to read each other's minds. Xavi, Iniesta, and De Bruyne are famous for finding gaps that don't seem to exist.

A measure of pressing intensity. Divide the passes you allow by the defensive actions (tackles, interceptions, fouls) you make in the attacking third. Lower number means more aggressive pressing - you're intervening more often. Higher number means you're sitting off and letting them pass. It's a standard stat now for measuring how much a team presses, though it doesn't tell you how well organized that pressing is.