Central midfielders provide a link between defence and attack, fulfilling a number of duties and operating primarily in the middle third of the pitch. They will support their team's attacking play and endeavour to win the ball back on defense. A central midfielder is often an important initiator of attacks and can be sometimes described as a "playmaker." They will also offer an additional line of defence when the team is under sustained attack and when defending set pieces. Central midfielders are always busy in a game and are often therefore sometimes described as the engine room of the team.