How many league titles has the Norwegian professional football club for which Jan Christiansen played in Trondheim won?
Rosenborg BK Rosenborg Ballklub, commonly referred to simply as Rosenborg (] ) or (especially locally) RBK, is a Norwegian professional football club from Trondheim that plays in the Eliteserien.The club have won a record 24 league titles, eleven Norwegian Football Cup titles and have played more UEFA matches than any other Norwegian team. RBK play their home games at the all-seater Lerkendal Stadion which has a capacity of 21,400. Kåre Ingebrigtsen was appointed head coach in July 2014.
SK Freidig Sportsklubben Freidig is a Norwegian sports club from Trondheim.