Christian Horner has suggested that Red Bull could struggle against their rivals at next weekend's Belgian Grand Prix.
The Milton Keynes-based constructor managed to get both Daniil Kvyat and Daniel Ricciardo onto the podium at the Hungaroring, last time out.
However, Horner is not expecting Red Bull to reproduce that performance at Spa Francorchamps.
He is quoted by Crash.net as saying: "They're going to be much more challenging than Hungary and Singapore is probably our next opportunity to shine.
"We're going to keep pushing, keep developing with the car though. You never know, it could be wet in Spa.
"You've got to be in a position on those days when it doesn't go right for others."
Red Bull are fourth in the constructors' standings.
