Contact between Aston Martin drivers Fernando Alonso and Lance Stroll added extra drama to the opening exchanges at the Bahrain Grand Prix.
When the tyre blankets came off on the grid, it was revealed that 19 drivers had fitted soft tyres to their cars with Kevin Magnussen the only exception – the Haas driver bolting on a set of the hard compound rubber.
On the formation lap, Lance Stroll endured a minor off at turn 10 as he locked his front-left tyre and ran wide.
Sergio Perez dropped quickly behind Charles Leclerc and narrowly avoided falling further back on the run to turn four.
But it was a disaster for Aston Martin as Fernando Alonso and Lance Stroll touched, although both appeared to avoid significant damage. The incident was caused as Stroll barrelled into turn four at excessive speed, his team-mate car acting as a physical brake for the Canadian.