The New Zealand cricket captain Dan Vettori says the Twenty20 world cup's a knockout and winning every game is what the champions will have to do.
The Black Caps play South Africa tonight, with both teams having beaten Scotland to qualify for the next stage, the Super 8s.
But Vettori says tonight's match is still a must-win as it's consistent form that'll take the winners to the title.
Vettori's team face South Africa at midnight at Lord's.
