BERLIN, March 1 -- German football is being hit by a wave of ultra-fans protests against commercialization.

During the Bundesliga duel between Hoffenheim and Bayern Munich, insulting chants triggered one of the most bizarre reactions in the history of football. The two teams passed the ball around for 13 minutes, while some players gathered in the middle of the pitch chatting with each other after the competition was interrupted twice for an offensive banner in the crowd.

German national keeper, Bayern Munich's Manuel Neuer, is said to have demanded the action to show the players disapproval. "We need to stand up against all form of insults in football," Neuer said.

In several arenas such as Dortmund, Cologne and Hoffenheim, supporters launched offensive attacks on Hoffenheim investor Dietmar Hopp. Fans claim the protests aren't exclusively aimed at Hopp, but to attract widespread attention on the topic of increasing commercialization.

Expressing justiciable insults in several arenas supporters have crossed borders which won't be tolerated by German association president Fitz Keller. German football has reached its lowest point, Keller said. "For too long we have tolerated insults, racial and homophobia outbreaks," the official commented.

This weekend's incidences represent a turning point in German football, Keller stressed.

Bayern Munich chairman Karl-Heinz Rummenigge announced the club would use all legal measures to bring the offenders to justice.

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