David Miller was handed the wicketkeeping gloves in preparation for his likely role as Quinton de Kock's back-up in the World Cup.
The win clinched a 5-0 series clean sweep for South Africa, continuing a horror run for Sri Lanka.
Sri Lanka have lost all eight ODIs under Lasith Malinga's captaincy and the veteran was dismissed in almost embarrassing circumstances.
Muttiah Muralitharan defended the Indian team after it's shocking loss to Australia in the 4th ODI and said that fans need to be more patient.
Aiden Markram was named in South Africa's squad for the final two one-day internationals against Sri Lanka.
South Africa's 71-run win, according to the Duckworth/Lewis/Stern formula, gave them a winning 3-0 lead in the five-match series.
Kagiso Rabada, bowling at more than 150 km/h at times, took three for 43 as Sri Lanka were bowled out for 138 in reply to South Africa's 251.
Highlights: SA vs SL 2nd ODI: South Africa lead the five-match series 2-0.
The hosts won the toss at the Wanderers Stadium, asked Sri Lanka to bat and bowled them out for 231.
Sri Lanka Cricket has long been beset by graft allegations and in-fighting, with the ICC recently labelling it the most corrupt cricket administration.
The ICC handed a two-year-ban to Sanath Jayasuriya from all forms of cricket under the anti-corruption code.
Sanath Jayasuriya was banned for two years by the ICC for breaching their Anti-Corruption Code.
The International Cricket Council found Sanath Jayasuriya guilty of breaching its Anti-Corruption Code.
This is South Africa's last 50-over assignment before the ICC World Cup 2019, starting on May 30 in the United Kingdom.
The unheralded Sri Lankans became the first team from Asia to win a Test series in South Africa.
Needing 197 runs to achieve a historic series win, Sri Lanka were 60 for two at the close of play on Day 2.
Irfan Ansari has been found guilty of breaching three counts of the ICC Anti-Corruption Code.
South Africa will aim for a desperate victory, to share the Test series and end a streak of seven successive home series wins.