South Africa paceman Morne Morkel said Monday he expected a short ball barrage aimed at Michael Clarke in this week's second Test at Adelaide in a bid to stop the Australian captain's run spree.
The tall Morkel said better use of the rising ball, and denying Clarke scoring singles, were part of South Africa's planning for Australia's in-form leader ahead of Thursday's Test.
Morkel says the Proteas had to be smarter in their approach to Clarke after his unbeaten double-century in last week's drawn first Brisbane Test.
Clarke was named the man-of-the-match in Brisbane for his third double-century of the year, his unbeaten 259 which turned the match away from the Proteas over the closing two days after coming with his team wobbling at 40 for three on Sunday's third day.
The Australian skipper is the highest scorer in Tests this year with 1,041 runs and averaging 115.66.
"Any batsmen struggles a bit at first with the short ball so we will probably come up with game plans and start working on those sort of things," Morkel told reporters on Monday.
"Definitely that is a plan to always use a short ball -- you have got two short balls an over so why not use it.
"We just need to use it in a clever way and see how we go from there."
Morkel said the South Africans had to put Clarke under greater pressure in Adelaide.
"He played very, very well," Morkel said.
Morkel said the South Africans would also address their costly spate of no balls in the Brisbane Test, where Proteas bowlers over-stepped 23 times.
Morkel was denied Ed Cowan's wicket because of a no ball while Australian quicks Peter Siddle and James Pattinson also lost wickets due to no balls.
"It's a controllable," Morkel said.
“It is something I personally have been working hard on ... the stats show we have been bowling quite a lot (of no balls) over the past few Test matches and Test series so it's definitely a thing that we are targeting at the moment."