The boys from Nigeria took the lead in the first half through an own goal in the 9th minute, Kelechi Iheanacho doubled the lead from a rebound dropped off by the Mexican goalie while the captain of the Side Musa Muhammed scored the 3rd 81' to seal the the victory for Nigeria.
Mexico earlier fell 1-6 to Nigeria in their opening match of the tournament.
Meanwhile Nigeria is now the most successful team in the history of the tournament winning four times, one better than Brazil.