New Zealand pace bowler Trent Boult has warned his side not to underestimate "hungry" South Africa as their troubled opponents fight for World Cup survival on Wednesday.
The Black Caps will go top of the World Cup group table if they beat South Africa at Edgbaston.
But the Proteas, with just one win from five matches, know they cannot afford another defeat if they want to maintain their slender hopes of a semi-final place.
"It's a must-win in their tournament," Boult said.
"We're looking forward to facing them and I am sure they are eager and hungry to put in a good performance, because it's a big one for them."
"It's a chance for us to go out there and perform and show we can bring the game and the style that we play back home in New Zealand very well, to test it against quality players in foreign conditions on a big stage, so we can't wait."