"At the end of the day I don't always know what's happening (in the garage).

"Perhaps we could have done a better job," he said. "It just made my job a little harder."

Piquet Jr. also secured Renault's first top-three finish of the season to put two Brazilians on the podium for the first time since 1991, when his father Nelson Piquet finished third at Belgium behind winner Ayrton Senna.

"I was so concentrated, I just wanted to look forward. I didn't want to spend too much time looking at how many laps but just focusing," the 22-year-old driver said. "It was an incredible feeling."

Ferrari was a step behind its rival all weekend.

"I didn't have the car to fight. It was not possible today," Massa said. "The last stint I had some problems with the brakes...that lost performance a lot."

Germany's Nick Heidfeld of BMW Sauber worked his way up from 12th to finish fourth ahead of McLaren's Heikki Kovalainen of Finland.

Ferrari's Kimi Raikkonen of Finland was sixth and is now seven points behind Hamilton, while Poland's Robert Kubica of BMW Sauber and Germany's Sebastian Vettel of Toro Rosso also earned points.

Hamilton now has 58 points to Massa's 54. World champion Raikkonen has 51.

Glock was accelerating through turn No. 12 before his rear suspension appeared to snap.

The 26-year-old German's car spun across the track and went backward into the opposite wall at high speed, with the Toyota driver emerging clutching his back before going to hospital.

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