Williams expected to reveal driver line-up on Friday

Cape Town - Williams have reportedly pencilled Friday in as the day on which they will reveal Lance Stroll's new team-mate.

The Grove-based squad have a driver vacancy following Felipe Massa's retirement and the names of Sergey Sirotkin, Robert Kubica and Paul di Resta were all mentioned as a possible replacement.

However, it emerged earlier this week that Kubica is no longer in the running with Sirotkin the clear favourite to land the seat due to his financial backing.

And now Russian's Tass news agency has revealed that Williams will make an announcement on Friday, December 15.