Sochi not ruling out 2018 night race

Russian Grand Prix organisers are still not ruling out the possibility Sochi could switch to a night race format in the future.

However, the Russian news agency Tass insists that the 2017 Russian Grand Prix will definitely be held in the day.

Promoter Sergey Vorobyov confirmed: "There will not be a night Grand Prix next year, but the idea is still alive."