This is how Mourinho caused troubles for Barca.
Keeping the compact shape & Man-marking all the receivers around the ball.
This is the iconic Mourinho's strategy against Positional Play.
⚪️De Zerbi's Tottenham & Rotations in Wide Areas
Against United's 4-4-2, De Zerbi utilises rotations to create an overload and break the lines.
Gallagher triggered the rotation and the FB & WG synced to maintain the balance.