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_40222 ( "Team 1" text, "Agg." text, "Team 2" text, "1st leg" text, "2nd leg" text )

### Question ###
What is the 1st leg of the Round that has a 2nd leg of 1-3 and Team 1 Es Tunis?

### Accurate SQL ###

SELECT "1st leg" FROM table_40222 WHERE "2nd leg" = '1-3' AND "Team 1" = 'es tunis'