user: Question: Who was the opponent on week 3?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 6, 1981', 'Houston Oilers', 'L 27-20', 63198.0]
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Week" = 3.0;