Laban Korir will return to the Scotiabank Toronto Waterfront Marathon on 18 October to defend the title he won in 2014 and, if the conditions are right, attack the course record at the IAAF Gold Label Road Race.

As if the world of men s sprinting didn t have an extraordinary cast of characters already, along comes Canada's 20-year-old Andre De Grasse.

World 1500m record-holder Genzebe Dibaba is the latest athlete to sign up for the Weltklasse meeting. The Ethiopian star will contest the 3000m at the IAAF Diamond League final in Zurich on 3 September.

Spain will be represented by 39 athletes at the IAAF World Championships, Beijing 2015.

Double world and Olympic champion Mo Farah is to return to Tyneside to defend his Great North Run crown at the IAAF Gold Label Road Race on 13 September.

In January 2009, 18-year-old Darya Klishina, the reigning world youth long jump champion, was at the CSKA Indoor Arena in Moscow, absorbing every word being spoken by long jump world record-holder Mike Powell at a master class.