Christian Horner called his title rival Toto Wolff a ‘pantomime dame’ and criticised him for suggesting that Lewis Hamilton’s title duel with Max Verstappen may be determined by an unsporting crash. ‘It is no-holds barred, it is pit-walls against pit-walls, drivers against drivers, engine suppliers against engine suppliers, chassis against chassis. ‘We are a racing team and aiming to win the constructor title and we also want to pull off the feat without a collision between our drivers. ‘Austin [a nail-biter won by Verstappen a fortnight ago to give him a 12-point lead] was a great race and we want a few more Austins before the end of the year.

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