Milorad Cavic of Serbia appears to touch the wall before Michael Phelps in the Men's 100m Butterfly Final. The Serbs appealed but Phelps was still adjudged to have won his seventh gold to equal Mark Spitz's record.
Best Olympic babes | Greatest Olympic moments | Greatest Olympians
From Hoy to Ohuruogu, we rewind Team GB's best Olympic performance in 100 years.
Thought 19 gold medals at Beijing was a super effort? Here’s why we'll do even better in London.