#1 The edge in the midfield battle
The one area where Manchester United have improved the most under Ole Gunnar Solskjaer is the midfield. United now have a very consistent midfield in Paul Pogba, Ander Herrera and Nemanja Matic.
The form of Herrera and Matic has allowed Pogba to have the freedom he has always wanted. Over the last two months, Pogba has arguably been the best midfielder in the world. His consistent and world-class performances week in and week out have been the main reason for United's revival
PSG, on the other hand, were struck a blow when their star midfielder Marco Verratti got injured against Guingamp. Due to lack of midfield options, PSG have been forced to play Dani Alves, Marquinhos and Di Maria in the midfield.
The French side will find it very tough to outplay United's midfield with their makeshift midfielders. Though Verratti is expected to return to training soon, it will be a surprise if he starts against Manchester United.
PSG have bought Leandro Paredes from Zenit St. Petersburg, but it will be difficult for the Argentine to fit in right away.
On current form and situation, Manchester United should be able to dominate the midfield battle, which might decide the overall outcome of the match.