Russian driver Nikita Mazepin said he was "very disappointed" at being dropped by Formula One team Haas on Saturday due to Russia's invasion of Ukraine and hinted he might take action over "this unilateral step." The 23-year-old had been looking forward to a second season with the American team -- he failed to register a point in the 2021 campaign -- but Haas announced on Saturday they had terminated his contract and that of Russian title sponsor Uralkali. Uralkali, a group specialising in potash, has Mazepin's father, Dmitry Mazepin, as its non-executive director.