Red Bull’s Sergio Perez and Alpine’s Esteban Ocon collided in first practice at the Emilia Romagna Grand Prix.
The two former team-mates came together at the Villeneuve chicane, causing the session to be stopped for a time.
Red Bull team boss Christian Horner said Perez had been on a flying lap and Ocon on a slow lap when they collided.
Mercedes driver Valtteri Bottas was fastest at the end of an incident-packed session.
Haas’ Nikita Mazepin
This post was originally posted on BBC News. Read the rest of the story at https://www.bbc.co.uk/sport/formula1/56773154.