[1] Rosengren started his career at Mjällby AIF in 1990 and played there until 2001.

In December 2012, he retired from professional football after playing his last match against IF Elfsborg on November 1, 2012.

Rosengren is nicknamed Bagarn, Swedish slang for 'The Baker'.

His son Otto Rosengren became a Mjällby player too, before making a move to Malmö FF.

This biographical article related to an association football defender from Sweden is a stub.