Australia v South Africa, 1st Test, Brisbane, 4th day
Cowan ton, Clarke double push Australia ahead
Opener Ed Cowan, who was unbeaten on 49 overnight, reached his half-century in the first over of the day•Getty Images
...Once they had survived the initial burst, though, both batsmen stuck in to lay the foundation for a big total. South Africa's captain Graeme Smith brought himself on to give his strike bowlers a break•Getty Images
In the 85th over, South Africa effected an unlikely breakthrough when Cowan was dismissed for backing up too far•Getty Images
South Africa created a few chances to get both batsmen out in the first hour...•AFP
Ed Cowan reached his first Test century soon after lunch...•Getty Images
Clarke, however, carried on to reach his double-century before stumps•Getty Images
...and was followed soon after by his captain Michael Clarke, who had survived a couple of chances in the morning session•Getty Images
He put on 188 runs with Michael Hussey, who scored an unbeaten 86, as Australia overtook South Africa's 450 with a day to go•Getty Images