Horner: Ricciardo is very fast

Red Bull Racing team boss Christian Horner is excited to see how Ricciardo - who is moving to Red Bull from the junior team Toro Rosso - fares alongside Sebastian Vettel.

"I think Daniel is very fast," he said. "Let’s see how fast he really is."

Horner said he doubts Ricciardo will clash with Vettel, despite the increasingly fractious relationship between the dominant German and Webber in past years.

"I think the relationship will be very different than it was with Mark," he said.

"Mark was at his peak when Sebastian came to the team, but Daniel is much younger and still learning. He will learn from Sebastian. The dynamics will be very different," added Horner.