Jose Mourinho delivers a passionate speech about the importance of football heritage, using Manchester City and Manchester United as examples. He argues that City's recent success is built on a foundation of investment in players and infrastructure over many years. #Mourinho #footballheritage #otamendi #kevindebruyne #fernandinho #silva #sterling #aguero #ManchesterCity #ManchesterUnited #premierleague #football #Competition #Footballers #Interview #viral #shorts