what is the number of the least matches
CREATE TABLE table_4284 (
    "Umpire" text,
    "Country" text,
    "Panel" text,
    "Matches" real,
    "WC Matches" real,
    "2011 WC" real
)
SELECT MIN("Matches") FROM table_4284
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 is the number of the least matches ### Input: CREATE TABLE table_4284 (
    "Umpire" text,
    "Country" text,
    "Panel" text,
    "Matches" real,
    "WC Matches" real,
    "2011 WC" real
) ### Response: SELECT MIN("Matches") FROM table_4284