Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Jan Berg (born 14 May 1965 in Molde) is a retired Norwegian football player who played for Molde FK, Elche CF and Rayo Vallecano. He was capped 23 times between 1982 and 1990. His brother is Odd Berg. In association football, a midfielder is a 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.