Which sport contains Popular formations include the 4-2 , 6-2 , and 5-1 systems ?
The usual formations of the defense are 6-0 , when all the defense players line up between the 6 - meter and 9 - meter lines to form a wall ; the 5-1 , when one of the players cruises outside the 9 - meter perimeter , usually targeting the center forwards while the other 5 line up on the 6 - meter line ; and the less common 4-2 when there are two such defenders out front .