(CNN) -- Tjaart van der Walt will seek to upstage two of his most illustrious golfing compatriots and win his first professional tournament at the Africa Open on Sunday. The 37-year-old goes into the final round tied for the lead with 2010 British Open champion Louis Oosthuizen and one shot ahead of two-time U.S. Open winner Retief Goosen after carding a superb eight-under-par 65 in East London on Saturday. Van der Walt, who finished second in a 2005 U.S. PGA Tour event, eliminated Oosthuizen's two-shot overnight lead as he started with four successive birdies and -- like his fellow South African -- picked up a shot at the final hole.
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Tjaart van der Walt catches Louis Oosthuzen at the top of the Africa Open leaderboard
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Veteran South African cards eight-under 65 to join major winner on 21 under par
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Former European Tour No. 1 Retief Goosen is a shot behind going into final round
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Defending champion Jonathan Byrd claims a one-shot lead at PGA Tour's opening event
Defending champion @placeholder's only lapse came at the par-five 11th hole as he took four shots to reach the green.