2 years and no impact does not bode well I'm afraid, the fact he can't get regular starting slot at setubal suggests he is a million miles away from turning out for sporting. I would have loved him to make it at sporting but in all honesty that ship looks to have sailed for him.
He may have to move again in January as first team football is now imperative for him to develop as at 21 it's at the critical stage of his career and his next step will define which direction his path will take.