Red Bull Racing team advisor, and President elect of the Sebastien Vettel Appreciation Society, Dr. Helmut Marko has launched another stinging attack on Mark Webber.

Speaking to the magazine Auto Motor und Sport, Marko said Webber should be more grateful to the team.

“Where was he two years ago?” said Marko. “Then he could not even dream of grand prix victories. Today, we have given him a car that he can win on his own.” he said.

Marko who is Red Bull owner Dietrich Mateschitz’s chief Formula One advisor, has made no secret of his support of Vettel over Webber.

It was Marko who was the most vocal supporter of the German after the coming together in Turkey.

He has also been widely reported as calling on Mateschitz and Horner to sack Webber next year and replace him with Toro Roso driver Sebastian Buemi.

Webber had said in a statement released earlier this week that he had cleared the air with the team and everything was looking good for the next round and the teams chase for the championship.

But with the next round in Vettel’s home country, and with the influential Marko clearly gunning for the Aussie, any chance Webber has of taking this year’s title is looking slimmer by the round.