CREATE TABLE table_48617 ("Date" TEXT, "Pos." TEXT, "Player" TEXT, "From club" TEXT, "Transfer fee" TEXT)

What is Pos., when Player is 'Nigel De Jong'?
SELECT "Pos." FROM table_48617 WHERE "Player" = 'nigel de jong'
SELECT "Pos." FROM "table_48617" WHERE "Player" = 'nigel de jong'