Muhammad Ali at the Opening Ceremony for the London 2012 Olympic Games

Muhammad Ali at the Opening Ceremony from the Olympic Stadium at the London 2012 Olympic Games. -27 July 2012

Every two years, the world's finest athletes gather at the Olympic Games - a spectacular celebration of sporting excellence that captures the attention of billions of people around the world. However, the Games are about much more than just sport. They bring the Olympic values to life and provide a global arena for a unique combination of sport, culture, education and ceremonies.

At the Olympic Games in London 2012, about 10,500 athletes from 204 countries compete in 26 different sports, comprising 302 medal events. Whether athletes win a medal or not, they can forever call themselves Olympians. The sporting competitions are undoubtedly the central focus of the Olympic Games and participating in the Games is the ultimate goal for most athletes.

Every edition has its own story to tell and will be remembered for some truly remarkable performances from sporting legends such as Jesse Owens, Abebe Bikila, Jean-Claude Killy, Nadia Comaneci, Katarina Witt, Michael Phelps and Usain Bolt, to name just a few.

Find more about the Olympic Games at www.olympic.org/olympic-games

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[Nathan O.K]

How can anybody not love Muhammad Ali?

[Raynie13]

Cried watching this. Such a hero! Noone deserves parkinsons ! xxx

[shazaibbiazahs]

he ain't no bitch, he's a man. 

[markgable101]

My dad said he met Muhammad Ali and Marvin Gaye at a Notting Hill carribean restaurant in the 60s'.

Cool.

[broman178]

It is sad seeing a legend like Muhammad Ali in this state but the fact that he was able to travel all the way from America to attend the opening ceremony of the 2012 olympics in London despite his Parkinson's Disease does prove that he is still, and always will be, The Greatest.

[DiegoLDA13]

best boxer on history in all time

[mtheadedwally]

Makes me cry every time I see it. This was such an awesome moment.

[ruksanab57]

Aww :'(

[moth proofsword]

Does anyone else not think this is kind of cruel, i mean he has Parkinson's disease so it will have been a massive effort to do this when he needs to rest, and it looks like he doesn't know whats going on... i love his past and those famous fights he won having watched a lot of them, but this doesn't really seem right him being there.

[Om Nom]

racists hate them..

[flexedblaze]

Big guy all pimped out

[C. Reed]

im crying.