Centurion: Gaganjeet Bhullar faltered in the third round as he stumbled to a two-over 74 and dropped from overnight ninth to tied 35th at the the Tshwane Open here on Sunday.
Bhullar, with three bogeys and a double bogey, had three birdies in reply.
Meanwhile Shiv Kapur improved on his overnight position with a round of two-under 70 to get to tied 41st up from overnight 51st. Kapur had four birdies against two bogeys.
Ross Fisher will take a five-shot lead into the final round as he looks to secure a first European Tour title for four years.
A member of Europe`s triumphant Ryder Cup team in 2010, the 33-year-old carded a five under par 67 at Copperleaf Golf & Country Estate to reach 18 under for the week.
Fisher was just one shot ahead at the halfway stage, but leads Northern Ireland`s Michael Hoey by five strokes after a round containing seven birdies and two bogeys.
Simon Dyson and Spain`s Carlos del Moral are a shot further back on 12 under, with Fisher?s team-mate from The Celtic Manor Resort Edoardo Molinari in a seven-strong group another stroke adrift.
"If I were to win here it would be a massive confidence boost and a step in the right direction. My primary goal is to get back in the top 50 [of the Official World Golf Ranking] - I`ve been there before and I feel like I belong there.
"I got to 17 in the world because of my Major performances, but like a few other guys I had a big comedown after the Ryder Cup having achieved the second pinnacle of golf outside of winning a Major and so early in my career. Maybe I suffered a bit from Ryder Cup-itis, as I called it," said Fisher.
Hoey had carded seven birdies in a row during his second round of 65, one off The European Tour record, but was unable to repeat such heroics on Saturday.