The Proteas’ Quinton de Kock and Faf du Plessis may not take to the field for the remainder of the Test.
The 27-year-old Van Zyl made a century on his Test debut, he made 101* off 130 deliveries.
“Twenty years of democracy has been possible because of Mandela,” said tribal chief Ron Martin.
Robin Peterson has been called up in place of the injured Dane Piedt and ahead of Imran Tahir.
Gayle has not featured on the international stage since September in the home series against Bangladesh.
Century partnership by Smith (104) and Wade (52) helped Australia recover from 98-5 to finish at 268-7.
Australia made a brilliant bowling comeback to beat South Africa by 73 runs, lead series 2-1.
WI management last week selected a 15-man squad and gave the players a week to sign tour contracts.
Left arm paceman Mitchell Starc was also recalled along with left arm spinner Xavier Doherty.
Chasing 155 to win, South Africa made hard work of a three-wicket victory over Australia; level series 1-1.
Perth also hosts the second game on Sunday with George Bailey confirmed to lead the home side.
Australia captain Michael Clarke will likely not take part in the second ODI versus South Africa on Sunday.
Clarke, who injured his left hamstring, top-scored with 70 in Australia’s total of 300-8.
Next year, South Africa will celebrate 100 years of Mahatma Gandhi’s historic journey from South Africa to India.
The summit is organised by foundations representing: Tutu, Nelson Mandela, FW de Klerk and Albert Luthuli.