Boucher overtakes Ian Healy for most dismissals...

Mark Boucher claimed the record for Test dismissals as South Africa continued their dominance against Pakistan on day three in Karachi.

Wicketkeeper Boucher equalled Australian Ian Healy's mark of 395 when he stumped Shoaib Malik and then broke the record by stumping Umar Gul six overs later, both off the bowling of left-arm spinner Paul Harris during the afternoon session.

Pakistan conceded a first-innings deficit of 159 after being bowled out for 291, skipper Shoaib providing the only note of resistance with a painstaking 73.

And South Africa reached 76-3 in their second innings by the close, extending their overall advantage to 235.

Shoaib had resumed on the third morning on nine with his side 127-5 and facing an uphill battle in reply to South Africa's first innings of 450.

That road became even steeper when Abdur Rehman (9) was caught behind off the bowling of Andre Nel (2-59) in the seventh over of the day to reduce the hosts to 149-6.

But a seventh-wicket stand of 84 between the captain and his deputy Salman Butt - who was able to bat after missing Tuesday's play due to gastroenteritis - edged Pakistan's total towards more respectable territory.

Harris then made a triple intervention - Butt trapped lbw for 24, followed by the stumpings of Shoaib and Gul (12) to allow Boucher to overtake Healy's record in his 103rd Test appearance.

Dale Steyn bowled last man Mohammad Asif (10) to end Pakistan's innings at 291, while former Warwickshire spinner Harris finished with Test best figures of 5-73.

Graeme Smith and Herschelle Gibbs compiled an opening stand of 41 as South Africa made a strong start to their second innings.

But the introduction of Pakistan's slow bowlers prompted the loss of three wickets in four overs, further evidence of the spin-friendly nature of the pitch at the National Stadium.

Debutant left-arm spinner Rehman removed Smith (25) and Hashim Amla (0) in successive overs, and leg-spinner Danish Kaneria then chipped in with the wicket of Gibbs (18).

That instigated a period of rebuilding by first-innings centurion Jacques Kallis (18no) and Ashwell Prince (11no), the fourth-wicket pair sharing an unbroken stand of 33 to allow South Africa to reach the close at 76-3.