Jamaican sprinter Asafa Powell confirmed he will go head-to-head against American Tyson Gay on British soil this year.
Gay was the fastest man over the 100-metre distance last year.
The pair’s first showdown will take place at the Aviva Grand Prix in Birmingham, on July 10 before they battle at the London Grand Prix on August 5 and 6.
Both events will be included on the Diamond League circuit, with the London race taking place exactly a year before the 2012 Olympic 100-metre final.
The Birmingham race at the Alexander Stadium will be the first Diamond League meet to be held in the city.
Powell, the former world record holder, looked in good form at the start of last year with a best time of 9.82 seconds in June before back and hamstring injuries cut his season short.