#3 Avoid giving set-pieces to Juventus, and don't park the bus
Juventus threat
Juventus boasts of one of the tallest and well-built line-ups in the world. On the other hand, United is one of the most vulnerable sides defending against set-pieces.
Despite playing really well against Chelsea, Pogba's mistake let Rudiger score a simple header from a corner, out of nowhere. Unfortunately for United, those kind of instances have made them concede multiple goals this season.
United strategy
Manchester United defenders must be very organised, and must not give away unnecessary set-pieces and corners.
With Fellaini out of the clash with injury, United cannot rely much on Herrera, Mata, Martial or Rashford to provide defensive depth. It is best for United not to sit back too much and rely only on counter-attacks, as Juventus will find a way to score a goal.
The best strategy is to press Juventus like they did against Chelsea in the 2nd half at Stamford Bridge. Pogba must be United's linchpin, distributing balls to Rashford and Lukaku to score goals.