Australian fast bowler Jason Gillespie is confident of playing in tomorrow's second cricket Test against England at the Adelaide Oval despite his troublesome calf injury.

Gillespie will be given until tomorrow morning to prove his fitness but the South Australian was pleased with how he bowled during Australia's final net session today.

Gillespie said he awoke today with no stiffness in the injured area, which initially caused him problems during the first Test in Brisbane.

Captain Steve Waugh said any decision on 12th man would be delayed until Gillespie's condition is decided.

England was holding its final training session at the Adelaide Oval, with young Yorkshire off-spinner Richard Dawson likely to replace Ashley Giles, who broke his wrist yesterday.

© AAP

This report does not necessarily represent the views of the Australian Cricket Board.