Lance Stroll has been given a 10-second time penalty for ignoring blue flags for a whole lap during the Austrian Grand Prix.

The Williams driver was also give three penalty points on his licence for failing to let Sergio Perez by when he was being lapped by the Force India.

The stewards noted drivers had been specifically warned about obeying blue flags during the pre-race drivers’ briefing.

“The driver of car 18 admitted he had seen the blue flags, light panels and the light on his steering wheel,” noted the stewards.

“He stated his team had told him to attempt to un-lap himself but had not advised him to let car 11 pass until almost one lap of flags and lights had been displayed to him.

“The reason for awarding three penalty points is that the issue of blue flags was specifically raised at the Friday night drivers’ briefing and confirmed in the race directors notes, in particular the requirement to allow the following car to pass “at the first available opportunity”.

“In this instance the driver decided to give priority to the team instruction (to un-lap himself) over the regulations and the race directors specific instructions (regarding the blue flag procedure).”

the penalty will drop Stroll to 14th place in the final classification, promoting his team mate Sergey Sirotkin. Stroll now has a total of four penalty points on his licence.

Advert | Become a RaceFans supporter and go ad-free

2018 F1 season