Manchester City's Serbian defender Aleksandar Kolarov celebrates on the pitch after the English Premier League football match between Manchester United and Manchester City at Old Trafford in Manchester, north west England, on September 10, 2016.
Manchester City's Serbian defender Aleksandar Kolarov celebrates on the pitch after the English Premier League football match between Manchester United and Manchester City at Old Trafford in Manchester, north west England, on September 10, 2016.
OLI SCARFF/AFP/AFP/Getty Images
Kelechi Iheanacho of Manchester City celebrates scoring his sides second goal during the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Kelechi Iheanacho of Manchester City celebrates scoring his sides second goal during the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Alex Livesey/Getty Images Europe/Getty Images
Jose Mourinho, Manager of Manchester United reacts during the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Jose Mourinho, Manager of Manchester United reacts during the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Alex Livesey/Getty Images Europe/Getty Images
Kelechi Iheanacho of Manchester City and Eric Bailly of Manchester United battle for possession in the air during the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Kelechi Iheanacho of Manchester City and Eric Bailly of Manchester United battle for possession in the air during the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Alex Livesey/Getty Images Europe/Getty Images
Manchester United manager Jose Mourinho shakes hands with Manchester City manager Pep Guardiola prior to the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Manchester United manager Jose Mourinho shakes hands with Manchester City manager Pep Guardiola prior to the Premier League match between Manchester United and Manchester City at Old Trafford on September 10, 2016 in Manchester, England.
Clive Brunskill/Getty Images Europe/Getty Images
Manchester United's English striker Wayne Rooney (R) and Manchester City's Spanish manager Pep Guardiola clash on the touchline as Rooney tries to retrieve the ball.
Manchester United's English striker Wayne Rooney (R) and Manchester City's Spanish manager Pep Guardiola clash on the touchline as Rooney tries to retrieve the ball.
OLI SCARFF/AFP/AFP/Getty Images
The two had words but shook hands after the brief confrontation.
The two had words but shook hands after the brief confrontation.
OLI SCARFF/AFP/AFP/Getty Images