Olympics: Dan Chung's best photos on day 10

Liu Xiang, the current Olympic 110m hurdles champion and darling of Chinese sport, pulls up with an Achilles injury during his warm-up for the heats Photograph: Dan Chung/Guardian

The 25-year-old attempts to start the race, but it is declared a false start. Moments later, Liu limps from the track with his head hung low Photograph: Dan Chung/Guardian

Tears of sadness from Liu's legion of fans in the Bird's Nest stadium Photograph: Dan Chung/Guardian

Liu's coach, Sun Haiping, tries to explain the nature of the injury to the media Photograph: Dan Chung/Guardian

Sun breaks down in tears as years of hard work come to nothing Photograph: Dan Chung/Guardian