The New Zealand cricketers play their second match of the Twenty20 world cup tonight, coming up against a South African side desperately needing to win to remain in the competition.
The Black Caps beat England in their first game while South Africa suffered a narrow loss to Sri Lanka.
Three wins from four games is needed for a side to reach the semi finals and if they Black Caps can beat South frica their next game is against unfancied Netherlands.
Vice captain Kane Williamson says momentum plays a big part in tournaments like these.
The match is scheduled to start at 10.30pm although heavy rain showers are forecast during the match.