Russian protest group and musical act Pussy Riot claimed responsibility for a protest which saw three people invade the pitch during the World Cup final at Luzhniki Stadium on Sunday.Posting on their official Facebook page, the group said: "Just a few minutes ago four Pussy Riot members performed in the FIFA World Cup final match."According to Reuters, a member of the Anti-Kremlin band, Olga Kurachyova, was one of the people that breached security and entered the field in the 51st minute of the match.The group's social media post said they were protesting in order to request that all politi…READ FULL ARTICLE