Eddie Jones will coach a Barbarians side including four of South Africa's Rugby World Cup winners against Fiji just two weeks after they beat his England side in the Rugby World Cup final.
Makazole Mapimpi, Tendai Mtawarira and Lukhanyo Am were in the Springboks starting line-up for their 32-12 victory over the Red Rose at International Stadium Yokohama on Saturday.
The trio are set to play under Jones at Twickenham on November 16 along with Herschel Jantjies, who was among the replacements as South Africa claimed the Webb Ellis Cup for a record-equalling third time.
Mapimpi scored his sixth try of the tournament in the final and fell just one short of Wales wing Josh Adams' tournament-leading tally in Japan.
Retiring Ireland captain Rory Best and France centre Mathieu Bastareaud have also been named in the Baa-baas squad for the Killik Cup clash with the Pacific Islanders along
The Barbarians will also face Brazil in Sao Paolo on November 20 and Wales at the Principality Stadium 10 days later.