Relations between Ukraine and Russia remain highly charged following Moscow's 2014 annexation of Ukraine's Crimea region and its backing for a separatist rebellion in eastern Ukraine. Some Ukrainian politicians have called on countries to boycott the soccer World Cup, which Russia is hosting.
Croatia defender Domagoj Vida apologised after his team's World Cup semi-final victory over England on Wednesday after speaking out in support of Russia's neighbour and adversary Ukraine.
Croatia's Football Federation (HNS) sacked Ognjen Vukojevic, a member of the national team's coaching staff, over a "glory to Ukraine" video posted after Croatia beat Russia in the World Cup quarter-finals, HNS said in a statement on Monday.