Manchester United defender Victor Lindelof was struck by an object thrown from the crowd celebrating his team’s equaliser against Manchester City in the FA Cup final at Wembley.
Lindelof was hit as the Manchester United players celebrated in front of the Manchester City supporters following a controversial penalty, which was scored by Bruno Fernandes.
The object, which appeared to be a lighter, was thrown from the end where the Manchester City fans were sitting and hit Lindelof near his left eye.
City took the lead after just 13 seconds - the fastest goal in FA Cup final history - but United were awarded a penalty later in the first half for a handball on Jack Grealish.
Lindelof continued to play on after being hit by the object and appeared to escape injury.
The Metropolitan Police said they will work with Wembley officials to review CCTV footage and identify the culprit.
Manchester United lost the match 2-1 with Ilkay Gundogan scoring both goals to see Manchester City complete their domestic double.