Juventus beat Manchester United at Old Trafford to dominate Group H of the Champions League with nine points from three games.
Paolo Debala scored a goal in the 17th minute after a low cross from right-hand side Cristiano Ronaldo of former United to settle the outcome of the match for the hero of Italy, who could return home more.
United goalkeeper David De Gia saved a series of chances, including a serious attempt by Ronaldo in the second half.
Paul Bogba hit the left foot from outside the area in the 75th minute but Jose Mourinho's team struggled to break through Juventus's impressive defense.
