London 2012: Muhammad Ali at Olympic Games opening ceremony

Muhammad Ali has appeared at the opening ceremony of the Olympic Games.

The former boxer, who has Parkinson’s Disease, appeared towards the end of the ceremony as the Olympic Flag was brought into the Stadium.

He was greeted with raucous cheers.

The flag was carried by people including Doreen Lawrence, mother of murdered teenager Stephen Lawrence, UN Secretary General Ban Ki Moon and Liberty’s Shami Chakrabarti.