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 ( young_rider_classification VARCHAR, winner VARCHAR )

### Question ###
What was the young rider classification when manuel cardoso was the winner?

### Accurate SQL ###

SELECT young_rider_classification FROM table_25580292_13 WHERE winner = "Manuel Cardoso"