Heavy snow caused part of the roof at Hamburg 's Audi Arena to collapse . A yearly biathlon , the World Ski Challenge , scheduled for this week has been cancelled . Staff had cleared an earlier downfall prior to Christmas but were unable to get onto the roof after that due to harsh weather conditions . Bayern 's next home game with Hamburg on March 15 not thought to be in danger .
Heavy snow caused part of the roof at Hamburg 's Audi Arena to collapse . A yearly biathlon , the World Ski Challenge , scheduled for this week has been cancelled . Bayern 's next home game with Hamburg on March 15 not thought to be in danger .