user: Question: What was the lowest attendance at a game against the St. Louis Cardinals?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Game Site', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 17, 1972', 'St. Louis Cardinals', 'L 3–10', '0–1', 'Memorial Stadium', 53562.0]
SQL:

assistant: SELECT MIN("Attendance") FROM "Table" WHERE "Opponent" = 'St. Louis Cardinals';