Yousuf Youhana hit a polished 65 and Shoaib Malik 45 after Pakistan were put in to bat, but Ntini slowed the hosts' progress, taking the wickets of the two top-scorers.

The 26-year-old from Cape Town, who went for 26 in his three overs on Friday, had opener Yasir Hameed in his sixth over, caught behind by Mark Boucher for 16, after Shaun Pollock bowled Mohammad Hafeez for 7.

With Pakistan 37-2, Youhana repaired the early damage with a sedate 101-run partnership for the third wicket with Inzamamul Haq.

Youhana was involved in verbal fisticuffs with South African all-rounder Andrew Hall after the two collided in the 13th over.

Pakistani umpire Nadeem Ghauri was forced to intervene to separate the squabbling players.

Play was also halted briefly when a member of the 28,000-strong crowd threw a bottle at South African fielder Neil McKenzie.

Pakistan skipper Inzamamul Haq pulled a hamstring in the 17th over and was forced to retire until he returned with a runner with just 4.1 overs left. He hit four boundaries to finish with 33 not out.

Pakistan, who lead the five-match series 1-0 after their narrow eight-run win in the first match on Friday, have dropped leg-spinner Mushtaq Ahmed for pacer Umer Gul.

The tourists were forced to retain the same 11 after experienced opener Herschelle Gibbs failed a fitness test.