Kathryn Nesbitt, one of six female match officials making history at the World Cup, says she is living an "impossible dream".
The 34-year-old American is one of three assistant referees, alongside Brazil's Neuza Back and Mexico's Karen Diaz Medina, with France's Stephanie Frappart, Rwanda's Salima Mukansanga and Japan's Yoshimi Yamashita the three referees which make up a six-woman contingent alongside a 30-man strong men's team.