CREATE TABLE table_57808 ("Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score" TEXT)

Who is the opponent in the final on August 14, 2006?
SELECT "Opponent in the final" FROM table_57808 WHERE "Date" = 'august 14, 2006'
SELECT "Opponent in the final" FROM "table_57808" WHERE "Date" = 'august 14, 2006'