Mark Webber will lose three places on the grid of the Bahrain Grand Prix after stewards blamed him for his class with Toro Rosso's Jean-Eric Vergne in China.
Webber made contact with Vergne when trying to pass the Frenchman for 12th position on lap 16 of the race. He confirmed his penalty to reporters as he left the stewards' office.
The Australian said he was sure Vergne had left him room to pass, although the Toro Rosso driver denied knowing Webber was there.
"I think Mark could not have got through from where he tried and I'm not even sure if he was trying to pass me. Certainly I didn't even know he was there," said Vergne. "Unfortunately, the impact put me into a spin and the incident damaged my floor. From then I lost a lot of downforce."