South Africa’s Malcolm Marx out of Rugby World Cup with long-term knee injury

South Africa hooker Malcolm Marx was ruled out of the remainder of the Rugby World Cup on Thursday with what the team described as a long-term knee injury.

Marx sustained the injury in a training session on Wednesday when his knee was “caught in contact,” the Springboks said.

The team didn’t immediately give any more details on the exact nature of the injury but suggested Marx was facing a long time on the sidelines.

“He’s been working…