Disgraced heptathlete Lyudmila Blonska has been banned for life after failing a doping test at the Olympic Games.

JAMAICA obliterated the field in the men’s 4x100 metres relay as Usain Bolt claimed his third gold medal and world record of the Beijing Games.

KELLY Sotherton hopes the career of heptathlon silver medallist Lyudmila Blonska is over after the Ukrainian failed a drugs test for the second time.

Tirunesh Dibaba battled back from the brink of defeat to retain her World Championships 10,000 metres title in Osaka on Saturday night.