Titolo: A combination of pictures on August 7, 2

Descrizione: A combination of pictures on August 7, 2012, shows (L) Chinese athlete Liu Xiang retiring from the first round of the men's 110m hurdles during the 2008 Beijing Olympic Games and (R) after striking a hurdle at the 2012 London Olympic Games. Liu Xiang's bid to banish his Beijing Olympics nightmare ended in disaster here Tuesday August 7, 2012, as the Chinese athletics icon crashed out of the 110m hurdles when he smashed into the first obstable. AFP PHOTO / STAFF (Photo credit should read STAFF/AFP/GettyImages)

Crediti immagine: AFP/Getty Images - © 2012 AFP