Sánchez became a key figure for Mexico's Under-17 team at the 2011 FIFA U-17 World Cup. He became first choice goalkeeper under coach Raul Gutierrez, and started all seven games. He and his teammates were the first nation to win the tournament on home soil. He kept two clean sheets during the tournament including in the final. He later played with the Mexico U-20 team as first choice goalkeeper in the 2013 FIFA Under-20 World Cup in Turkey.