CREATE TABLE table_72572 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Game site" CLOB, "Record" CLOB, "Attendance" FLOAT)

In week 9 who were the opponent?
SELECT "Opponent" FROM table_72572 WHERE "Week" = '9'
SELECT "Opponent" FROM "table_72572" WHERE "Week" = '9'