Sigurður secured his place in Walsall history by scoring the third goal in the team's 3–1 win over Oldham Athletic in 1999, to secure promotion to the second tier of English football.
In August 2013, Sigurður resigned as coach of Iceland's women's team after seven years. He continued in his role as head of education at the Football Association of Iceland (KSÍ) and was looking to move into coaching men's football.[1]