Ed Cowan of Australia plays a hook shot against Dale Steyn of South Africa during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Ed Cowan of Australia bats during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Dale Steyn of South Africa celebrates the wicket of David Warner of Australia during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Mark Kolbe/Getty Images
Dale Steyn of South Africa celebrates the wicket of David Warner of Australia during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Mark Kolbe/Getty Images
Michael Clarke of Australia bats during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Mark Kolbe/Getty Images
Morne Morkel of South Africa appeals for the wicket of Ed Cowan of Australia during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Mark Kolbe/Getty Images
Ricky Ponting of Australia leaves the field after being dismissed by Morne Morkel of South Africa during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
Ed Cowan of Australia bats during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Ed Cowan of Australia bats during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
Dale Steyn of South Africa thanks fans during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Matt Roberts/Getty Images
Michael Clarke of Australia bats during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Graeme Smith of South Africa calls for the third umpire referral during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Mark Kolbe/Getty Images
A general view of play during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Michael Clarke and Ed Cowen of Australia leave the field at the end of play on day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Mark Kolbe/Getty Images
Morne Morkel of South Africa apeals for the wicket of Ed Cowan of Australia during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
Michael Clarke and Ed Cowan of Australia talk during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
Morne Morkel of South Africa bowls to Ed Cowan of Australia during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
Hashim Amla and Vernon Philander of South Africa leave the field at end of play during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
General view of play during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Chris Hyde/Getty Images
Ricky Ponting of Australia looks dejected after being dismissed by Morne Morkel of South Africa during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Morne Morkel of South Africa celebrates after taking the wicket of Ricky Ponting of Australia during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images
Dale Steyn of South Africa bowls during day three of the First Test match between Australia and South Africa at The Gabba in Brisbane, Australia. Photo by Ryan Pierse/Getty Images