The new European Tour season opened with special dispensation for players to wear shorts due to the excessive heat with temperatures rising to as high as 40 degrees.

The 33-year-old Dutchman Besseling, who usually competes on the Challenger Tour, set the pace at the course which is on the border of the Kruger Park.

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Besseling leads South African Keith Horne, Pablo Larrazabal of Spain and England's Garrick Porteous, who qualified for the Tour last week.

They all carded 66, with another Spaniard Alejandro Canizares a stroke back on 67.

Former Masters champion Charl Schwartzel returned after a lengthy layoff with wrist problems to card a 70 in his first competitive round in seven months.

Queenslander Jake McLeod (74) is the lone Australian in the field and has work to do to make the cut.