Force India team principal Otmar Szafnauer has warned team orders may have to be reintroduced after seeing Sergio Perez and Esteban Ocon collide on the opening lap of the Singapore Grand Prix.
Ocon was forced to retire from the opening lap of the race after being punted into the wall by teammate Perez on the exit of Turn 3. Force India was forced to employ team orders mid-way through 2017 after the duo came to blows on several occasions throughout last season.
Reflecting on the events of lap one, Szafnauer told Sky Sports: "Well I mean it's unacceptable for them to come together like that in an area there's no run-off room.