Mercedes chief Toto Wolff sets deadline on George Russell and Valtteri Bottas decision

That gives Red Bull the slight edge as they hold a slender lead over their rivals in the Constructors’ Championship.

Wolff concedes that Red Bull are a much tougher proposition this year, but he expects the fight to go right down to the wire.

“Red Bull are a bit faster on paper. But we will fight until the end,” he added.

“And we have to, because this championship [fight] will go until the end.”