user: Question: Who did the Colts play against on September 25, 1966?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Game Site', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 10, 1966', 'at Green Bay Packers', 'L 3–24', '0–1', 'Milwaukee County Stadium', '48,650']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Date" = 'September 25, 1966';