An aggressive Travis Head put Australia in charge after the first day of the opening Test against South Africa at the Gabba in Brisbane on Saturday.

After bowling out the visitors for 152 on the stroke of tea, Head came to the crease with the Australian score a precarious 27-3. But on a wicket that all batters found difficult to score on, Head looked a different class, smashing an unbeaten 78 from just 77 balls.