The term 'midfield' is most common in soccer, rugby, and hockey, but less usual in sports like basketball. In soccer, controlling the midfield often determines who controls the game.
Pro Tip 2/3
Game Strategy
'Midfield' can also imply the strategic aspect of the game, referring to how players organize and move. The coach focused on strengthening our midfield strategy.
Pro Tip 3/3
Metaphoric Use
Sometimes 'midfield' is used metaphorically to describe a central or balancing position in non-sport contexts. She always plays midfield in office politics.