Red Bull team boss Christian Horner has refused to be drawn on who will partner Sebastian Vettel next year when Australian Mark Webber leaves the team.

The Australian is heading to sportscar racing with Porsche.

Webber earlier told Network 10 that a decision had been made that is “good for Australia” – a clear suggestion that Red Bull had chosen fellow-Australian Daniel Ricciardo to succeed him.

But Horner wouldn’t be drawn on it after Vettel’s dominant display in the Belgian Grand Prix.

“We are taking our time to think about this decision and we are under no pressure. It is not like the football transfer window or anything like that,” he said.

The softly-spoken Englishman hailed Vettel’s display to take the win in Belgium.

Horner says it was a vital blow in their bid for a fourth consecutive title double, and that the key moment came in the 28-year-old German’s opening lap passing move on Briton Lewis Hamilton’s Mercedes.

“It was a matter of getting the first corner OK and then Sebastian grabbed the opportunity at Eau Rouge,” said Horner.

“He had the momentum and he was able to go around Lewis and that was the decisive moment.

“There’s still a long way to go, but it was a dominant performance from Seb, a perfect display by the team with pit stops and strategy.

“This is not a track that suits us, but I’m delighted we got the win.”

Vettel’s win was the 31st of his career and lifted him 46 points clear of nearest rival two-time champion Spaniard Fernando Alonso of Ferrari in the title race.

In the teams’ contest, Red Bull lead with 312ahead of Mercedes on 235.