Antón came to Real Madrid's youth system in 2003, when he was 14 years old. In 2007, he made his professional debut playing with Real Madrid B in the Segunda División B (3rd level of Spain's league system). Without playing in the team, he sat on the bench in Bernd Schusters last match as coach of Real Madrid and the first of Juande Ramos. He also played 8 international matches for Spain's Under-19 team in the U19 European cup.