South Africa captain Graeme Smith has said it will be a challenge for his team to keep up its high standards of cricket.
South Africa defeated Pakistan, in the first of a three-Test series at the Wanderers before lunch on the fourth day.
Their two Tests against New Zealand also ended inside three and four days respectively.
Taking a Test to a fifth day was a lot of hard work, and therefore, it was important to keep backing such performances, Sports24 quoted Smith, as saying.
He said it is more of a challenge to continue to play at such a high standard, as the players still had to train hard, remain humble in their processes and keep focussed on their high skill levels.
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