Schumacher also failed to score, retiring three laps from the end with broken steering and leaving the Spaniard 11 points clear in the championship with five races remaining.
Schumacher, winner of the last three races, was lapped by Alonso after 25 laps but was fighting for a podium finish when he banged wheels with Heidfeld and broke the steering.
"You can always say afterwards, 'Okay, we could have surrendered a spot or two to get a few points.' But on the other hand, that's the way I am," said Schumacher.
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