CREATE TABLE table_59828 ("Date" CLOB, "Opponent" CLOB, "Venue" CLOB, "Result" CLOB, "Attendance" FLOAT)

Which Date has an Attendance larger than 51,338, and an Opponent of manchester united?
SELECT "Date" FROM table_59828 WHERE "Attendance" > '51,338' AND "Opponent" = 'manchester united'
SELECT "Date" FROM "table_59828" WHERE "Attendance" > '51,338' AND "Opponent" = 'manchester united'