Chase Koepka, brother to US Open champion Brooks, moved into a three-player group on twelve-under thanks to a four-under 68 which included a long-distance birdie at the last.
Retief Goosen, a two-time US Open victor, faltered at the last on Friday with a double-bogey six and lost further ground on the field with a one-over 73 to finish at seven under heading into the final round, while Ernie Els carded a two-under 70 to sit 10 shots off the lead at five under.
"I get on a streak like this where I make one of those longish putts in the first couple of holes, then I pretty much know I just have to get it there".
Branden Grace made three eagles on his way to a seven-under-par 65 on Thursday to take a share of the first-round lead of the SA Open, proudly hosted by the City of Ekurhuleni, at Glendower Golf Club.
Young South African Jacques Kruyswijk is their nearest challenger on nine under par after a 67 and in what is his rookie season on the European Tour.
Saddier matched the course record with seven birdies and an eagle.
Legendary Announcer Keith Jackson Dies at 89
Jackson died "surrounded by his family", NBC Sports' Todd Harris reported. "Thank you for the lessons KJ". He also called some legendary Major League Baseball games, like Game 6 of the 1977 World Series.
Saddier, a 25-year-old whose only professional success came in the second-tier European Challenge circuit two years ago, scored an eagle and seven birdies to roar into contention.
"At the moment it is weird - I feel like I did not play awesome golf".
"The finish was awesome", the Frenchman said. "It feels good. I don't want to get ahead of myself, just want to do my thing, but this is great for the confidence". "Having the record is quite cool". Scotland's Bradley Neil is a further shot back, but defending champ Graeme Storm carded a 75. I'm sure the crowd is going to be on his side.
South African major winners Ernie Els (71), Retief Goosen (69) and Charl Schwartzel (69) all had solid opening rounds, but Trevor Immelman (79) carded five bogeys and a double-bogey on a day to forget for the 2008 U.S. Masters champion.
Austin Connelly made the cut at the BMW SA Open golf championship in Edenvale, South Africa.