Prince century checks Zimbabwe's progress
South Africa 380 for 6 (Prince 101*, Kallis 58) lead Zimbabwe 265 by 111 runs
Scorecard and ball-by-ball details
Prince, who made his debut against Australia in 2001-02, was particularly strong through the off side, but had a huge slice of luck when he was dropped on 53, the second catch put down during the day. His partnership with Kallis finally took the steam out of Zimbabwe, who had chipped away manfully. Kallis did not appear until No 7, resting his injured hip, but was quickly into his stride. He notched up yet another half-century but after batting cautiously to ensure he would be around for the new ball, dragged Heath Streak into his stumps (338 for 6). The batsmen looked in no real hurry, but they may be down to three fit bowlers in the second innings and wanted to make their lead as large as possible.
Zimbabwe's attack started to wilt towards the end of play, and Nicky Boje took advantage of some loose offerings to boost the lead. Zimbabwe were not helped when Tatenda Taibu had to leave the field with a shoulder problem, thrusting the wicketkeeping duties to Barney Rogers.
Until the final session there had been a feeling that South Africa's batting was fairly slap-happy - a hangover from the complacency shown on the first day. Each time a batsman, or partnership, had looked like breaking loose Zimbabwe struck back. Much credit has to go to Graeme Cremer, who suffered a fierce pasting at Cape Town, but bowled 26 overs off the reel here, picking up two vital wickets. Jacques Rudolph, dropped before lunch, never looked on song before dragging Cremer onto his stumps via a bottom-edge and boot (133 for 3).
Herschelle Gibbs was very comfortable at the crease - maybe too comfortable - and the return of Streak for a second spell caught him off guard. Streak began to find the rhythm that has eluded him so far this series, and had a huge appeal for caught behind turned down. Four balls later he forced Gibbs into playing a strangely loose pull shot, the ball looped in the air and Taibu ran around to short fine-leg to take the catch (194 for 4).
Mark Boucher's wicket was well deserved as it came through some good captaincy from Taibu. He had just moved Hamilton Masakadza into short extra-cover and Boucher obligingly drove a catch straight to him (219 for 5). Credit, too, must go to Cremer, who was good enough to induce the shot.
South Africa have had a somewhat dismissive attitude towards this match, but today's Zimbabwe performance has made them sit up and take notice. They should go on and win quite comfortably, but the ruthless side that was on view at Cape Town seems to have retreated once again.
How they were out
Smith c Rogers b Chigumbura 41 (93 for 1)
Top-edged pull to deep mid-wicket
de Villiers c Masakadza b Mpofu 47 (106 for 2)
Expansive drive, edged to first slip
Rudolph b Cremer (133 for 3)
Inside-edge onto foot, rolled back into stumps
Gibbs c Taibu b Streak 47 (197 for 4)
Top-edged pull, looped in the air, keeper ran round to catch
Boucher c Masakadza b Cremer 18 (219 for 5)
Drove to short extra-cover
Kallis b Streak 58 (338 for 6)
Inside-edge onto off-stump