Career
During his active career as a goalkeeper, he played the bulk of his career with Danish clubs Vejle Boldklub and Silkeborg IF. He played for Turkish club Beşiktaş before ending his career with Aberdeen in Scotland, retiring in 2003. He represented the Denmark national football team in four matches. Born in Fredericia, he started his senior career at Vejle BK in 1983.
He played a total 225 games and scored two goals for the club
He only played one game in the Danish Superliga 1991-1992 season, serving as back-up for Boye Habekost, as Vejle were relegated to the Danish 1st Division. He played his last Vejle game in November 1992, before he joined Superliga club Silkeborg IF, making his debut for the team in March 1993.
He had a brief stint in Turkey with Beşiktaş J.K. in 2001, under manager Christoph Daum. After two months at the club, Kjær was told by Daum that he contemplated leaving the club, and Kjær asked for his contract to be annulled.
In October 2001, he was picked up by Danish manager Ebbe Skovdahl to join Scottish club Aberdeen.
He stayed with the club until June 2003, after which he retired. He made his Denmark debut on 25 April 2001 in the farewell match of Peter Schmeichel. He was 35 years and 171 days old at the time, breaking the old record for oldest Danish debutant by 17 days, a record set by Johannes Gandil in 1908.
He went on to play four international games until March 2002.
After his retirement, Kjær was hired as a commentator and pundit for Danish television 3 in August 2004. He was named sporting director of his former club Silkeborg IF in October 2008, and was in the job for nearly six months.
He then went back to doing television work.