Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_25580292_13 (stage VARCHAR, winner VARCHAR)

### Question ###
What was the stage when the winner was luis león sánchez?

### Accurate SQL ###

SELECT stage FROM table_25580292_13 WHERE winner = "Luis León Sánchez"