After losing 2-1 to South Korea, the Europeans aim to respond, while Bafana Bafana also seek recovery after a 2-0 defeat to Mexico.
The Sparta Prague defender says they understand South Africa’s style and are well prepared ahead.
“The opponent will be typologically different. Korea had a lot of speed, South Africa has more power players,” Zeleny told the Czech national team website.
“I think the game will be a little more physical. I saw their first crazy match. Not that they would completely rush into the press and it would be a real duel."
He added that the Africans are not in a better position than Czech Republic going into the match, despite both sides suffering defeats in their opening games.
“It was the opening match, so maybe one team was waiting to see what the other would do,” he continued.
“They are in a similar situation to us, and they didn’t score a goal, so they are a little worse off.
“We need to prepare better than them and win the match.”