Arnar Viðarsson

Arnar started his career in FH, and moved to Belgium to play for Sporting Lokeren. He returned to FH for a short period and he also had a loan spell at Lillestrøm SK and a trial at then Cup holders Genk, appearing as a substitute for the club in the Belgian Supercup against reigning champions Club Brugge in August 1998. Genk lost the match 2–1. However, he was passed on by Genk after that window. He has played for Sporting Lokeren from October 1998 until 2006, playing as a left-back in his early years. In his fourth season at Daknam, he was steadily modified into a defensive midfielder by then coach Paul Put. He became club captain in the summer of 2001, following Chris Janssens's departure to Dutch Willem II. Upon his arrival, the club signed many Icelandic players such as midfielder Rúnar Kristinsson who holds the Icelandic record for most international caps. Arnar's biggest achievement as a Lokeren player was finishing in third place in the 2002–03 season, behind champions Club Brugge and runners-up Anderlecht. Lokeren's midfield triangle was all-Icelandic consisting of himself, Rúnar Kristinsson and Arnar Grétarsson. Two seasons earlier, they had already managed to finish in fourth. In 2006, he transferred to FC Twente, where he signed a contract until 2009. For the 2007–08 season he was loaned out to newly promoted De Graafschap, before eventually returning to Belgium, playing for Cercle Brugge, where he ended his career as a player in the summer of 2014, becoming…

Arnar was capped 52 times for Iceland, scoring 2 goals, as well as 41 times at youth level. He made his debut for the seniors in a June 1998 friendly match against South Africa.

Arnar is the brother of fellow Icelandic midfielders Bjarni and Davíð, and the son of Icelandic footballer Viðar Halldórsson.