Hospital officials say Felipe Massa is in "life-threatening" condition after undergoing emergency surgery on a skull fracture following a violent crash at Hungarian Grand Prix qualifying.
Officials at the AEK military hospital said Massa will be kept sedated on a respirator overnight in the intensive care unit.
Medical director Peter Bazso said at a news conference that "Massa's condition is serious, life-threatening but stable." Bazso and chief surgeon Lajos Zsiros said they expect Massa to be awoken on Sunday.
Massa underwent surgery one hour after arriving at AEK hospital at 3:20 pm local time, the doctors said.
Massa was struck in the helmet by a loose part from another car and slammed straight into the tire barrier.
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