In-form 400m hurdler LJ van Zyl will be the only SA athlete in action at the first leg of the campaign in Doha on Friday night, but three of his compatriots will turn out at the second meeting in Shanghai on Sunday.
Van Zyl, who equalled the 200m hurdles world best of 22.10 seconds at a street race in Manchester last week, faces a full-strength line-up in the Qatari capital.
He is up against the likes of former world champion Bershawn Jackson of the United States, Olympic bronze medallist Javier Culson of Puerto Rico and two-time Olympic gold medallist Felix Sanchez of the Dominican Republic.
