South African Christiaan Bezuidenhout will take on Kevin Kisner in Sunday’s singles matches at the Presidents Cup.
The United States carry an 11-7 lead into the final day at Quail Hollow, where a fightback by the global squad offers an outside chance at some drama.
The Americans, chasing a ninth consecutive title, own an 11-1-1 edge in the all-time rivalry and have never lost on home soil.
The US need 4.5 points while the Interntionals must take 8.5 to claim the trophy outright for the first time since 1998.
Justin Thomas, who was 4-0 in pairs matches alongside Spieth, faces Kim Si-woo in the opening match of the afternoon.
Undefeated Jordan Spieth follows against Australia’s Cam Davis, who birdied the last three holes on Saturday to produce a 1-up victory, with Japan’s Hideki Matsuyama facing Sam Burns third and Patrick Cantlay playing Aussie Adam Scott after that.
World No 1 Scottie Scheffler, the reigning Masters champion who went 0-3 in pairings with Burns, will meet Colombia’s Sebastian Munoz.
Canada’s Taylor Pendrith meets Tony Finau and Tokyo Olympic champion Xander Schauffele faces Canada’s Corey Conners.
South Korea’s Im Sung-jae plays Cameron Young with South Korean star Kim Joo-hyung meeting Billy Horschel just ahead of unbeaten Max Homa taking on Kim, whose 18th-hole birdie brought the Internationals a dramatic win on Saturday.
Sunday’s two final matches send two-time Major winner Collin Morikawa against Chile’s Mito Pereira and Kisner against Bezuidenhout.
On Friday, Bezuidenhout and Pereira tied their fourballs match against Young and Kisner.
© Agence France-Presse