South Africa responded to defeat in their World Cup opener against Japan with a dominant victory over Samoa at Villa Park.
A week on from their shock loss to Japan, the Springboks knew that it was win or bust for them, and they came out with intensity from the off.
Samoa led early with two Mike Stanley penalties and were the better team until the fly-half was picked off by Pietersen for a try against the run of play.
That changed the complexion of the game, and the Springboks, led by the brilliant Eben Etzebeth used all their experience to open up a 17-6 half-time lead.
Pens: Stanley 2
For South Africa:
Tries: Pietersen 3, Burger, Brits, Habana
Cons: Pollard, Lambie
Pens: Pollard 4