user: Question: Who was the opponent after week 9 with an attendance of 44,020?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 9, 1967', 'at Houston Oilers', 'W 25–20', '28,003']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Week" > 9.0 AND "Attendance" = '44,020';