Sergio Garcia barely held onto his lead as Louis Oosthuizen's second-round charge took him to within a shot of the Spaniard at the Nedbank Golf Challenge on Friday.
Garcia's 1-under 71 moved him to 9 under 135 overall, but his four-shot advantage from the first day disappeared as Oosthuizen (67) made an eagle and five birdies at Gary Player Country Club.
While Garcia bogeyed three of his last six holes, Oosthuizen came home in 32, with that eagle and two birdies on his back nine.
Garcia is seeking a third Nedbank title but first since 2003. Oosthuizen, who is from South Africa, has never won his country's most prestigious tournament.
Mikko Korhonen (70) was...