Nico Rosberg claims he was "surprised" that Mercedes team-mate Lewis Hamilton attempted an overtake on the approach to Turn 4, which ended with both drivers retiring from the race.
Rosberg snatched the lead from Hamilton around the outside of Turn 1 but was not in the correct engine mode through Turn 3, enabling the Briton to carry greater speed through the corner.
Hamilton ducked to the inside on the run to Turn 4 but Rosberg defended, with the chain of events resulting in Hamilton sliding across the grass, collecting Rosberg, and sending both into the gravel.
"I had a great start," said Rosberg. "I was really ecstatic about the first corner move. From then on I was sure it was my race to win.
"Through Turn 3 I noticed that I was down on engine power. I saw Lewis closing in, and as soon as I could I closed the door.
"It was a strong move to make sure he understood that there was not going to be space there. I’m surprised, as he went for it anyway. Then we were in the sandtrap."
Rosberg was asked whether he felt the need for clear the air talks with Hamilton.
"That’s something I need to think about in the days to come, I can’t tell you now," he said.
"At the moment I’m just extremely gutted. It was my race to win. I’m not just gutted for myself, but gutted for everybody. The whole team, we’re all together in this."