Borussia Dortmund defender Mats Hummels has insisted that he has no attachment to his old club Bayern Munich.

The 23-year-old came through Bayern's youth academy, but moved to Dortmund in 2008 after failing to make the breakthrough in the first team.

"I do not give a damn about Bayern," he told Bild. "I have completely lost the link with the club.

"I am now thoroughly a Borusse (dedicated to playing for Dortmund)."

Dortmund are away at Bayern in the Bundesliga on Saturday.