Yeah first half hour or so will be crucial. Batters will be readjusting to today's conditions, and any nerves will be the highest at the start of the innings. Once they get through a few overs all that will ease.
That said, this is an epic choke if South Africa lose from here. As a stats nerd, I have a formula for the 'life' left in a chase, which is runs remaining divided by wickets remaining minus two. If that's 10 or less, then it's game over. More than that the batting team might be the favourites, but the bowling team have a chance. Right now it's 11.5, but 9 more runs gets it below 10.


