Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Ivan Litera (born 13 February 1976 in Belgrade) is a Serbian professional football player. A midfielder (or simply mid) is an association football position. Some midfielders play a more defensive role, while others blur the boundaries between midfielders and forwards. The number of midfielders a team uses during a match may vary, depending on the team's formation and each individual player's role. The group of midfielders in a team is called the midfield.