Central Midfielder
A Central midfielder or a centre midfielder (CM) is a midfield player whose role is to play equally between attack and defence and to dominate the play in the centre of the pitch.
Central midfielders are supposed to pass the ball to their attacking midfielders (CAM) and forwards and may also help their forwards by making runs into the opposition's penalty box and attempting shots to score goals themselves.
Types
There are two types of central midfielder:
Box-to-box midfielder
Box-to-box midfielder refers to CM players who are a hard-worker and have good skills and abilities to perform well at both defending and attacking.
Mezzala
Mezzala means "half-winger," in Italian and it is used to describe the position of the one or two central midfielders who flank a holding midfielder and/or playmaker.