Sebastian Vettel and Fernando Alonso have called for sausage kerbs to be removed from circuits – before more drivers end up in hospital.

At the United States Grand Prix, the raised kerb at Turn 1 was taken out before the Formula 1 race following two serious incidents earlier in the race weekend.

In the first of two W Series races at the Circuit of The Americas, Abbie Eaton sustained a vertebral compression fracture after driving over a sausage kerb, while US Formula 4 driver Christian Weir also suffered a broken bone in his back.

Monza has been another scene of crashes caused by sausage kerbs – Max Verstappen’s car landed partly on top of Lewis Hamilton’s after clipping one at the opening chicane in the Italian Grand Prix.