The scrum-half departed injured after just 43 seconds following a collision to the head.
"This is why World Rugby want players to stop flying out the line out of control to try and reduce these head collisions upright or low. Eventually, a conscious de Klerk was stretchered off - with both sets of players applauding him off. South Africa scrum-half Faf de Klerk was forced off after just 43 seconds of their Rugby Championship opener against New Zealand after suffering a nasty collision to the head.