Sprint champions gather for million dollar showdown
The winner of the 100 metres will scoop $500,000 (€440,000), with another $500,000 being distributed through the rest of the field. In total $2 million (€1.76m) in prize money is up for grabs - a reward that organisers say is the biggest ever.
World champion Kim Collins from St Kitts and Nevis, who collected €53,000 for winning his title in Paris last month, will take on world-record-holder Tim Montgomery, Olympic champion Maurice Greene and European champion Dwain Chambers.