Question: Who is the opponent for the game played on August 20, 2006?
SQL: SELECT "Opponent" FROM "2-16484261-3" WHERE "Date" = 'August 20, 2006';

Question: On which Surface will Estrella Cabeza Candela play?
SQL: SELECT "Surface" FROM "2-16484261-3" WHERE "Opponent" = 'Estrella Cabeza Candela';