The 28-year-old Icelandic international joined up with The Lions early last week and played a part in today's reserve match against Crystal Palace, scoring in the 3-3 draw.
He began his career with Fylkir, scoring 18 times in 54 appearances before moving on to Lillestrom, where his performances attracted the attention of several big clubs in England. He eventually moved to Elland Road on a Bosman but found first team opportunites limited thanks to a string of injuries that culminated in him have a hip operation at the beginning of last season.