Hammarby Fotboll considers Södermalm its heartland .
Hammarby Fotboll , commonly known simply as Hammarby ( or ) or ( especially locally ) Bajen ( ) , is a Swedish football club based at Tele2 Arena in Johanneshov but founded in the neighbouring Södermalm district of Stockholm , an area the club considers its heartland .
Hammarby Fotboll