Saturday 10 October 2015 13:36, UK
Branden Grace delivered two big shots late on Saturday to get the International team within one point of the Americans going into a final day at the Presidents Cup.
Team USA have been dominant in the opening stages of this contest at the Jack Nicklaus Golf Club Korea but their opponents struck back in the gloom on the third day to set up a thrilling finale on Sunday.
Team USA leads 9.5-8.5 with 12 singles matches remaining.
The South Africa duo of Grace and Oosthuizen have been the driving force for captain Nick Price as they became the first International tandem to go 4-0 in team matches. Tiger Woods and Steve Stricker in 2009 are the only US team to do that.
World No 1 Jordan Spieth also won two matches on Saturday, making two clutch putts in the morning foursomes and holing a bunker shot in the afternoon fourballs.
Phil Mickelson and Zach Johnson had the morning off and never trailed in their fourballs victory.
Bae Sang-moon and Hideki Matsuyama, who earned a key half-point in the morning, had the shortest match of the week when they beat Jimmy Walker and Chris Kirk, 6 and 5, in fourballs. Bae is playing his final event before his mandatory military service starts in South Korea.
"We need to win," Oosthuizen said. "This is huge for us."
The pivotal match belonged to Grace and Oosthuizen, who were all square with the big-hitting American duo of Watson and J.B. Holmes.
Grace was left of the green on the 16th when he chipped in, raising his arms before the ball even reached the cup and sharing a bear hug with his longtime South African friend.
Oosthuizen had a chance to end it on the par-3 17th but he missed a six-footer in near-darkness.
The four players could barely see the 18th green. Oosthuizen hit into the water and Grace, from 263 yards facing a stiff breeze, blasted a 3-wood that narrowly cleared a bunker and settled on the edge of the green.
Holmes and Watson, needing to win the hole to earn a halve, both missed the green and Grace rolled his eagle putt to tap-in range to close it out.
"The chip-in on 16 and the second into 18 showed he's a world-class player," Oosthuizen said. "No moment is too big for him."
Oosthuizen said they went to Price after they won Thursday's opening match and offered to split up, knowing both were playing well and thinking perhaps they could bring another International player along. Price chose to keep them together, and it has clearly paid off.
No team trailing going into the last day have ever won this competition. The Americans have won the gold trophy five successive times with the lone International victory in 1998 in Australia.
