Ukraine's motor racing federation has asked Formula One's governing body, the FIA, to ban all Russian and Belarusian drivers amid the ongoing war in its country.
If the request is accepted it would prevent Russian driver Nikita Mazepin from racing for Haas in F1.
Russian military invasion of Ukraine has caused widespread condemnation and sanctions from world leaders.
Mazepin's future is already in doubt as a result of that conflict, with Haas set to decide over the coming days what to do with its title sponsor Uralkali, owned by Mazepin's father Dmitry.