What was the lowest attendance was the opponent was chelsea?
CREATE TABLE table_60490 (
    "Round" text,
    "Date" text,
    "Opponent" text,
    "Venue" text,
    "Result" text,
    "Attendance" real
)
SELECT MIN("Attendance") FROM table_60490 WHERE "Opponent" = 'chelsea'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What was the lowest attendance was the opponent was chelsea? ### Input: CREATE TABLE table_60490 (
    "Round" text,
    "Date" text,
    "Opponent" text,
    "Venue" text,
    "Result" text,
    "Attendance" real
) ### Response: SELECT MIN("Attendance") FROM table_60490 WHERE "Opponent" = 'chelsea'