South Africa captain Faf du Plessis could take little joy from a big win over Sri Lanka, having already been knocked out of the World Cup.
Sri Lanka's chances of making the last four at the Cricket World Cup reduced considerably as they were swept aside by South Africa.
Sri Lanka and South Africa players were comically left lying prone at one point in their match on Friday in order to avoid bees.
JP Duminy, who will retire from ODIs after the Cricket World Cup, knows South Africa's failure could have repercussions for others.
Both South Africa and Namibia were beaten in their AFCON openers and the pressure is already building on Bafana Bafana in Egypt.
South Africa's chances of a Cricket World Cup semi-final spot are over, but Sri Lanka remain in contention ahead of Friday's game in Durham.
It has been a troubling seven days for Cricket World Cup hosts England, who are in grave danger of missing out on the semi-finals.
Having failed to win a single match in a title defence two years ago, Ivory Coast began with three points against South Africa at the AFCON.
It is a huge week at the Cricket World Cup for Australia, who meet both England and New Zealand.
South Africa captain Faf du Plessis acknowledged the Proteas' batting order has struggled for confidence at the Cricket World Cup.