Horner: Our driver line-up is very healthy

Red Bull team chief Christian Horner is adamant that his team's driver line-up of Daniel Ricciardo and Max Verstappen is healthy despite the potential for friction as the pair battle for the same piece of tarmac on race days.

Speaking during the summer break, Horner told ESPN, "You can see that it is very healthy. There is great respect between the two of them."

Horner had his fair share of headaches during the team's golden era with Sebastian Vettel and mark Webber often feuding.

Of the team's current pairing, Horner said, "As far as teammates can go, they seem to like each other and they want similar things from the car. Beyond that, they're both very, very fast."

Verstappen was drafted promoted from Toro Rosso to the Red Bull team, in place of Daniil Kvyat, for the Spanish Grand Prix and sensationally won his debut race.

Since then the balance of power appeared to shift away from Ricciardo's side of the garage to Verstappen's section.

Horner explained, "[Germany] went in Daniel's favour, Barcelona went in Max's favour. It's the swings and roundabouts of a season, and I think that both drivers have done an outstanding job."

"We've had great performance from a variance of circuits, from Austria to Silverstone to Budapest and, [Germany] - four very different venues, with very different surfaces."

"I think that bodes well for the second part of the season," predicted Horner whose Red Bull team lies second in the constructors' championship standings.