What is the nationality of the soccer player who was the head coach of the under-21 football team that has been playing since 1976?
Denmark national under-21 football team The Denmark national under-21 football team has played since 1976 and is controlled by the Danish Football Association. Before 1976, the age limit was 23 years.
Marcus Allbäck Marcus Christian Allbäck (] ; born 5 July 1973 in Gothenburg), is a retired Swedish footballer and current coach, who has acted as assistant coach for the Sweden national football team in the past. He was a well-travelled striker known for his sharp finishing ability.