Lewis Hamilton on Sunday was visibly not jubilant as he accepted the winner's trophy for the twelfth time in his career.
It emerges that the 2008 was unhappy not with teammate Jenson Button's feisty racing from behind while the pair were running first and second at Istanbul, but the prior "communication" from the McLaren pitwall.
"The communication wasn't clear for me," said the Briton, who fought back and re-passed Button after they had been told to save fuel.
"When they suggested 'save this much fuel' it was not easy unless I went ridiculously slowly.
"I tried to reach that target and in doing so Jenson all of a sudden appeared from nowhere."