- 19 updates
Violent scenes at the end of the Manchester derby cast a shadow over a remarkable encounter that saw United secure a late 3-2 win.
Rio Ferdinand was struck by a missile and was then confronted by a fan on the pitch - an incident which appeared to be defused by Manchester City goalkeeper Joe Hart.
The fan was subsequently led away from the pitch by police.
Ferdinand was seen showing an object to referee Martin Atkinson at the end of the match.
Manchester United manager Sir Alex Ferguson has described the incident which saw Rio Ferdinand struck by an object during the Manchester derby as "unfortunate".
The missile hit Ferdinand as United were celebrating their third goal in a 3-2 win at the Etihad stadium.
He told Sky Sports:
Football fans have been sharing their thoughts on Rio Ferdinand's injury on Twitter:
Rio Ferdinand was left bleeding from the head after being hit by an object thrown from the crowd during Manchester United's 3-2 win at Manchester City.
A coin-sized object was seen bouncing off Ferdinand's head on television replays of the incident.
Manchester United defender Rio Ferdinand has been struck by an object thrown from the crowd during the Manchester derby.
The centre-back was hit on the head – an injury which drew blood - while celebrating his team’s winning goal in a 3-2 victory at the Etihad Stadium.