CREATE TABLE table_68891 ("Team 1" CLOB, "Agg." CLOB, "Team 2" CLOB, "1st leg" CLOB, "2nd leg" CLOB)

What is the second leg that Valencia was on?
SELECT "2nd leg" FROM table_68891 WHERE "Team 2" = 'valencia'
SELECT "2nd leg" FROM "table_68891" WHERE "Team 2" = 'valencia'