CREATE TABLE table_25435 ("Edition" CLOB, "Round" CLOB, "Date" CLOB, "Against" CLOB, "Surface" CLOB, "Opponent" CLOB, "W\\u2013L" CLOB, "Result" CLOB)

Name the surface against monaco
SELECT "Surface" FROM table_25435 WHERE "Against" = 'Monaco'
SELECT "Surface" FROM "table_25435" WHERE "Against" = 'Monaco'