大象传媒

Gabby Logan presents live coverage of the penultimate Diamond League meeting of the season - a meeting dubbed the 'one-day Olympics' due to the programme of events and high-class assembled field.

Double 100m, 200m and 4x100m relay Olympic champion Usain Bolt will be appearing at the Letzigrund Stadium for a fifth time. The Jamaican proved in London that he is the greatest sprinter of all time and has won both previous 100m races on the iconic Swiss track. However he is yet to taste victory over 200m, finishing second over the distance in both 2006 and 2007.

David Rudisha smashed his own 800m world record in spectacular style on his way to gold in London. The Kenyan is unbeaten in his two appearances at this meeting and will be looking for another special victory to help round off another dominant season.

Colin Jackson offers expert analysis of the action.