Johannesburg - Khotso Mokoena and Zarck Visser will turn out at the Diamond League meeting in Birmingham, England, on Sunday, as South Africa's top long jumpers look to further entrench themselves among the contenders for the world title.
Mokoena and Visser have already met the qualifying standard for the IAAF World Championships in Moscow, Russia, in August, and will be eager to show their worth against a world-class line-up.
The men's long jump field includes Russian world No 1 Aleksandr Menkov, American Dwight Phillips, the four-time world champion, and Olympic gold medallist Greg Rutherford of Great Britain.
National high hurdles record holder Lehann Fourie, who has struggled with injuries this season, will be desperate to get his international campaign off the ground.
Fourie is up against Americans Aries Merritt, the world record holder, and David Payne, a former Olympic silver medallist in the men's 110m hurdles race.
Two-lap specialist Andre Olivier, the only other South African competing in Birmingham, will look to build on his consistency this season.
He toes the line against a men's 800m field which includes Ethiopian teenage sensation Mohammed Aman, the world indoor champion.
The only other man in the line-up who has run faster than Olivier this year is Jeremiah Mutai, but the Kenyan's 1:43.9 performance in Nairobi in May was hand-timed.