CREATE TABLE table_203_871 (id DECIMAL, "#" DECIMAL, "player" TEXT, "pos" TEXT, "pts" DECIMAL, "tries" DECIMAL, "conv" DECIMAL, "pens" DECIMAL, "drop" DECIMAL, "opposition" TEXT, "venue" TEXT, "date" TEXT)

who is the only player who is not a fly half ?
SELECT "player" FROM table_203_871 WHERE "pos" <> 'fly-half'
SELECT "player" FROM "table_203_871" WHERE "pos" <> 'fly-half'