South Africa were on track for their second successive big win over New Zealand when they claimed four second innings wickets on the third afternoon of the second and final Test at St George's Park on Sunday.
New Zealand were 157 for four at the close, still 247 runs short of avoiding a second conscutive innings defeat, after being forced to follow on 404 runs behind.
Dale Steyn took five for 17 as New Zealand were bowled out for 121 in their first innings.
Left-arm spinner Robin Peterson took the first two wickets in the second innings and paceman Rory Kleinveldt followed up with two wickets off successive deliveries.
New Zealand wicketkeeper Brian Watling followed up an impressive first innings of 63 — more than half his team’s total — with 41 batting as he shared an unbeaten fifth wicket stand of 73 with Dean Brownlie (44*) to delay South Africa’s progress.
Brief scores South Africa 25/8 dec vs NZ 121 (Steyn 5/17) and 157/4 (M Guptill 48, B Watling 41*)