Exactly what went wrong at the Mercedes double pit stop?

Mercedes were on their way to an easy one-two victory in Bahrain when a double pit stop during the safety car went completely wrong. Andrew Shovlin of Mercedes has explained exactly what went wrong in the team's press release.

Shovlin emphasised that it was therefore a mistake in their system and that no individual within the team could do anything about it. They are now going to do everything they can to ensure that it does not happen again. "We've still got some work to do unpicking the issues that caused our problems at the pit stop but we have time to do that properly before the next race."