Paulo Bernardo has returned to Celtic with a vengeance and will be determined to build on his excellent Glasgow Derby display last weekend. The Portugal Under-21 international rejoined the club permanently in the summer for £3.5 million and is set to be relied on in the engine room following Matt O’Riley’s departure. Composed performances against St Mirren and Rangers have left Bernardo in the ideal position to kick on once the international break concludes. The carrot of involvement in the Champions League has also the scene for him to make a decisive impact. Arne Engels and Luke McCowan will…