ネスタ・カーター
There was also a fourth straight win in the 4 × 100 metres relay with the Jamaica team (Nesta Carter, Asafa Powell, Nickel Ashmeade, Usain Bolt). The Americans initially had a lead, but a poor baton exchange saw them disqualified and Jamaica defend their title in 37.36 seconds – well clear of the Chinese team who took a surprise silver for the host nation.