Max Verstappen answers questions in the media pen in AustinImage source, Getty Images
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Max Verstappen has won the past two grands prix, in Malaysia and Singapore

ByAndrew BensonF1 Correspondent in Austin

Max Verstappen says the bumps on the track that hosts this weekend's United States Grand Prix are "unacceptable" and "out of control".

The Dutchman said drivers had complained about the condition of the Circuit of the Americas in Austin, Texas, and attempts by the organisers to resolve it had not worked.

Red Bull's Verstappen said: "I love this track, I love this place. It's one of the best layouts ever and it's one of the best venues, best city to be at.