"My captain, Misbah-ul-Haq does rely on me a lot in the team and at times I feel there is an element of over-reliance on me but I am fine with this and I try to deliver for the team all the time," Ajmal told reporters at the national cricket academy on Tuesday.
Ajmal who has been Pakistan's best bowler for the last two years in the three formats of the sport said he relished the challenge of being Pakistan's best bowler but at times felt the burden of expectations as well.
"I can't predict as to how many wickets I will get in the coming series but I will give my best and for that I am prepared."
Ajmal who took 24 wickets at an average of around 15 in the 3-0 Test series win over England two years back in the UAE said he was looking forward to a similar performance against South Africa.
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Asked if he saw the coming series as a revenge series because SA whitewashed Pakistan earlier this year at home, Ajmal said there was nothing like revenge in cricket.
Ajmal also defended his teammates saying that Pakistan had a good bowling attack and could do well against SA.
"In the past, I have played on green top pitches and still done my best and taken wickets but in the end all the bowlers have to perform for the team to win," he said.
Ajmal didn't agree that Pakistan's batting was very weak and said one or two bad performances didn't mean Pakistan was a bad team.