Mercedes-Benz F1 boss Norbert Haug has ruled out helping Hockenheim to survive a financial crisis and keep hosting the German grand prix.

The circuit alternates running the annual formula one race with the Nurburgring, but Hockenheim mayor Dieter Gummer has said the situation is "no longer justifiable" beyond 2010 due to continuing losses.

Williams driver and German-born Nico Rosberg is quoted as saying by the news agency SID: "That is inconceivable. Germany must have a formula one race.

"Mercedes and BMW have to make it happen, or it is up to Bernie Ecclestone to require lower fees," he added.

But Haug, long in charge of Mercedes' involvement with McLaren, answered: "That is not our job. A football player doesn't build the football field."

BMW-Sauber team boss Mario Theissen adds: "For us as car manufacturers, a formula one race in Germany is important. It is a home event for us that we look forward to, as do many of our supporters."

Source: GMM