Broos knows that his side cannot afford another slow start if they are to overcome such a well-drilled and tactically sound opponent.
"So again, it will be a tough game, but in another way," he added.
"Today [Thursday] it was a tough game because of the physicality of Czechia; against South Korea, it will be more about the discipline in the group.
"Also, the physical in the sense that they run."
The coach is clearly wary of the tactical discipline that has become a hallmark of South Korean football on the global stage.