Russian GP promoter's have threatened F1 with "legal steps", and accused the FIA of "discriminating" against Russian drivers.
The RAF has accused motorsport of discrimination after Motorsport UK banned all Russian athletes from competing in UK events.
Michael Masi says F1 has plans in place to hold qualifying on Sunday morning should the rain at Sochi prevent any running on Saturday.
Valtteri Bottas was the Mercedes driver to beat in Friday's first practice for the Russian GP, two-tenths up on Lewis Hamilton.
F1 heads for the Black Sea coast and the resort of Sochi this weekend - here's everything you need to know ahead of the Russian Grand Prix.
Pirelli have announced which tyre compounds they will be making available for the Tuscan and Russian Grand Prixs.
F1 heads for the Black Sea coast and the resort of Sochi this weekend as Ferrari bid to make it four victories in a row to continue their astonishing 2019 renaissance at the Russian Grand Prix.