We are now 30 minutes away from the start of play at the WACA with the toss have been won by Australia and them having decided to bat.

The following teams were announced by the captains:

Australia: Clarke (c), Haddin (vc), Warner, Rogers, Watson, Smith, Bailey, Johnson, Siddle, Harris, Lyon

England: Cook, Carberry, Root, Pietersen, Bell, Stokes, Prior, Broad, Bresnan, Swann, Anderson

No changes for Australia with Ryan Harris confirmed fit. One change for the English with Bresnan coming in for Panesar.

Captains Clarke and Cook play their 100th test match in would should be an epic encounter! Bring it on!