After their disappointing bowling attack in the second innings against England in the first Ashes test at Brisbane, Australia bolstered their pace attack for the second Ashes Test at Adelaide.

England had made a stunning 517-1 in their second innings to save the first Test, with Australia's front-line bowlers far from threatening the English trio of Strauss, Cook and Trott, all of whom made centuries.

With the addition of Ryan Harris and Doug Bollinger in a 13-man squad, Mitchell Johnson looks most likely to drop out after his abysmal return of 0-170 at the Gabba. The seamer has taken only 11 wickets in his last five tests matches and he looked out of sorts at the Gabba on a flat wicket.

Bollinger, 29, is a left-arm seamer and prefers to use the new ball, unlike Johnson, while the inclusion of Harris, who came back from a knee injury and took six wickets for Queensland, is backed by Ricky Ponting.

Everyone I've spoken to, fitness staff-wise, believe the injury that he had would be fine for a test match. We'll get a good look at him in Adelaide and see where he's at but it's nice to have him back around the group, said Ponting.

There are lots of things to like about him. His success at international cricket shows he's one of those guys who is just meant to be playing.

He's a great competitor, he runs in all day for you and is the sort of guy who will bowl the right length for Adelaide conditions. He'll run in and bang the ball in down there, which is crucial if you're going to get the best out of the Adelaide wicket, and if it happens to reverse swing he can do that as well.

Ponting also conceded that his team would have to improve if they are to get the better of a determined England side.

We probably haven't played our best the last couple of days of the game, he said. The wicket did change dramatically and the last three days of the game have been dominated by the bat.

We've got some work to do. We just weren't able to mount any pressure on them. They played very well and you have got to give them credit.