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_6910 ( "Name" text, "Campeonato Paulista" real, "Copa Libertadores" real, "Campeonato Brasileiro" real, "Copa Sudamericana" real, "Others" real, "Total" real )

### Question ###
What is the largest copa sudamericana number when the others number is less than 0?

### Accurate SQL ###

SELECT MAX("Copa Sudamericana") FROM table_6910 WHERE "Others" < '0'