Legendary Manchester United manager Sir Alex Ferguson was shockingly harassed by a Manchester City supporter after Sunday afternoon's derby.
The hosts won 4-1 at the Etihad thanks to braces from Kevin De Bruyne and Riyad Mahrez, completing City's first Premier League "double" over United since the 2018-19 campaign.
Ferguson, who won 13 league titles and countless other trophies during his 26-year reign at Old Trafford, attended the game and was seen leaving the ground afterwards.