Jamaican sprinters Usian Bolt and Asafa Powell are set to face one another in the weeks building up to the Olympic Games in London.
The pair will meet in the 100m races at the Diamond League events in Rome on May 31 and then a week later in Oslo on June 7.
Bolt, who holds both the 100m and 200m world records, will also feature in the 200m sprint at both events.
The heats for the 100m event at the London 2012 Olympic Games begin on August 4.
