Rabada returns to the attack. Rachin Ravindra drives neatly for a single. Allen cuts one on the leg side for another run. Rachin then pushes one straight back -- mistimed and in the air but Rabada can't quite reach it. A lucky escape. He makes the most of it, cracking a boundary and then rotating strike with a single. Seven off the over. NZ 51/1 after 5 overs.
Jansen continues. Rachin goes big -- launches a towering six into the crowd! But the very next moment, he edges one and it's taken! David Miller pulls off a sharp catch at short third. He rarely drops those.
Rachin departs for 13 off 8 balls. NZ lose their second wicket.
Glenn Phillips walks in next. Hes late on the flick first up and the ball thuds into the thigh pad -- leg bye signalled. Allen then punches one towards point but finds the fielder.
Wicket! Allen goes aerial and its taken! Aiden Markram pulls off a superb catch at mid-off. Thats Jansens third wicket in two overs.
Finn Allen departs after a brisk 31 off 17 balls, a crucial breakthrough for South Africa.
Mark Chapman is the new batter and he defends the final delivery of the over.
At the end of the Powerplay, New Zealand are 58/3.