<P> The general visa policy of Russia did not apply to participants and spectators, who were able to visit Russia without a visa right before and during the competition regardless of their citizenship . Spectators were nonetheless required to register for a "Fan - ID", a special photo identification pass . A Fan - ID was required to enter the country visa - free, while a ticket, Fan - ID and a valid passport were required to enter stadiums for matches . Fan - IDs also granted World Cup attendees free access to public transport services, including buses, and train service between host cities . Fan - ID was administered by the Ministry of Digital Development, Communications and Mass Media, who could revoke these accreditations at any time to "ensure the defence capability or security of the state or public order". </P> <P> The official match ball of the 2018 World Cup group stage was "Telstar 18", based on the name and design of the first Adidas World Cup ball from 1970 . It was introduced on 9 November 2017 . </P> <P> After the group stage, "Telstar Mechta" was used for the knockout stage . The word mechta (Russian: мечта) means dream or ambition . The difference between Telstar 18 and Mechta is the red details on the design . </P> <P> On 30 April 2018, EA announced a free expansion for FIFA 18 based on the 2018 FIFA World Cup, featuring all 32 participating teams and all 12 stadiums used at the 2018 FIFA World Cup . </P>

When do the group stages of the world cup finish