Sif, who began her career as a forward but later developed into a pacey full back,[1] left Icelandic club Valur for German side 1.

[8] Sif is currently part of Iceland's national team and competed in the UEFA Women's Championships in 2009 and 2013.

She made her senior national team debut in a 2–1 defeat to Italy at the Algarve Cup in March 2007.

[10] Sif is the daughter of Atli Eðvaldsson, former captain and coach of the men's national team.

This biographical article related to women's association football in Iceland is a stub.