Hammarby IF

Hammarby IF, commonly known as Hammarby or Bajen, is a Swedish football club from Stockholm founded in 1915 when a football department was established at the Hammarby IP sporting ground in Södermalm. The club's colours are green and white, though it wore black-and-yellow striped home shirts from 1918 until 1978.

The club plays its home matches at 3 Arena in Johanneshov, and Södermalm is regarded as its heartland. Hammarby is known for its vocal supporters, who introduced football chants to the Swedish terraces in 1970.

The club has had long periods of yo-yoing between the top flight and lower divisions, and its best showing came in the 1970 season, when it finished fifth after a strong autumn run. Its supporters were energised by that run, and the club has remained a major presence in Swedish football ever since.