The central defender is also a midfielder, generally called avant-garde, which is divided into front waist and back waist. A central defender refers to a central defender. As the name implies, they are defenders in the middle. They are outstanding in figure and generally don't require high speed. Generally speaking, however, a good central defender is very helpful to the midfield, because his passing is the first kick on the court besides the goalkeeper, which is very important. It can directly affect the quality of attack. At this point, older central defenders, such as former Spanish captain Ciro, are the most aggressive when passing the ball, and Dutch veteran Delporte's accurate long pass to Argentina even directly contributed to Bergkamp's best goal in the 1998 World Cup. Modern central defenders are all burly and have good physical fitness, but it is a big mistake to say that they are rough. Materazzi even scored many exquisite goals for Inter Milan. So, he used a ball.