which opponent is listed previous to j rgen fassbender ?
CREATE TABLE table_204_520 (
    id number,
    "outcome" text,
    "no." number,
    "date" number,
    "championship" text,
    "surface" text,
    "opponent" text,
    "score" text
)
SELECT "opponent" FROM table_204_520 WHERE id = (SELECT id FROM table_204_520 WHERE "opponent" = 'jurgen fassbender') - 1
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: which opponent is listed previous to j rgen fassbender ? ### Input: CREATE TABLE table_204_520 (
    id number,
    "outcome" text,
    "no." number,
    "date" number,
    "championship" text,
    "surface" text,
    "opponent" text,
    "score" text
) ### Response: SELECT "opponent" FROM table_204_520 WHERE id = (SELECT id FROM table_204_520 WHERE "opponent" = 'jurgen fassbender') - 1