Demus and Dibaba world leads in London
There were world leading performances for Lashinda Demus and Tirunesh Dibaba on the second day of the Aviva London Grand Prix at Crystal Palace today.
But it was sprinters Usain Bolt and Tyson Gay who again captured the headlines.
The Aviva London Grand Prix is a Super Grand Prix status meeting as part of the IAAF World Athletics Tour 2009.
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