CREATE TABLE table_12559 ("Player" TEXT, "Pos." TEXT, "Nationality" TEXT, "Previous team" TEXT, "Years of NBA experience [a ]" TEXT)

What F Player was previously with the New York Knicks?
SELECT "Player" FROM table_12559 WHERE "Pos." = 'f' AND "Previous team" = 'new york knicks'
SELECT "Player" FROM "table_12559" WHERE "Pos." = 'f' AND "Previous team" = 'new york knicks'