• Sri Lanka lose 16 wickets in just over two sessions
• South Africa win by an innings and 118 runs to sweep series 3-0

Du Plessis enforced the follow-on and Sri Lanka were quickly on the back foot again as Rabada accounted for opener Kaushal Silva for a first-ball duck.

The impressive Olivier snapped up two more quick wickets, with Du Plessis leaping to an almost impossible height at second slip to pluck the ball out of the air as Mathews was dismissed for 10.

The game was up for Sri Lanka when Rabada rattled the stumps of opener Dimuth Karunaratne (50), who had a provided lone resistance.

"Congratulations to South Africa, they outplayed us in every department," Mathews said.

"We kept repeating the same mistakes. We knew we would not get slow, turning wickets in South Africa and that we would have to play really good cricket, but unfortunately we haven't."