Extra security measures are planned for the 2018 World Cup in Russia following hooligan violence at the European Championship, new FIFA secretary general Fatma Samoura said on Tuesday. Russian fans, some equipped with martial arts gear, clashed with English supporters in Marseille city center and inside the stadium during the tournament in France. Asked during her first visit to Moscow about fears that such violence could be repeated in Russia, Samoura said ''there will be additional measures,'' including known troublemakers being banned from stadiums. More...