Career
Sif, who began her career as a forward but later developed into a pacey full back, left Icelandic club Valur for German side 1. Football Club Saarbrücken in the 2009-2010 winter transfer window. In 2011 she moved to Kristianstads DFF following Saarbrücken"s relegation.
Sif is currently part of Iceland"s national team and competed in the Union of European Football Associations 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.