Hazel Irvine presents action from Britain's showpiece athletics event.

The Aviva London Grand Prix at Crystal Palace is one of the highlights on the athletics grand prix calendar, with several of the world's elite athletes expected to battle it out at the nostalgic south-east London venue.

With less than a month to go before the World Championships in Berlin, the best track and field stars from around the globe will be looking to steal a psychological march on their rivals. Show less