CREATE TABLE table_204_883 (id NUMBER, "pos." CLOB, "name" CLOB, "place of birth" CLOB, "date of birth" CLOB, "previous club" CLOB, "date joined" CLOB, "fee" CLOB)

how many players are listed as df ?
SELECT COUNT("name") FROM table_204_883 WHERE "pos." = 'df'
SELECT COUNT("name") FROM "table_204_883" WHERE "pos." = 'df'