On Friday I got a cover from Russia.
FIFA World Cup - Participating Teams (from set of eight) (issued 10-05-2018)
The stamp is about Group G, which consisted of Belgium, England, Panama and Tunisia. For Panama it was the first participation in a Football World Cup. Belgium was the top in the group and England the second. Belgium and England met again in the match for third place, which was won by Belgium.
with a special postmark about the World Cup
Thank You very much Elena!