Peter Siddle concedes he won't get picked for every Test this summer but the veteran fast bowler is determined to extend his international career.

Siddle forced his way back into the Australian team for the Ashes earlier this year and will captain the PM's XI against Sri Lanka at Manuka Oval on Thursday.

Peter Siddle hopes his Test career will continue this summer. Credit:AP

The Victorian turns 35 next month and will be vying against fellow quicks Pat Cummins, James Pattinson, Josh Hazlewood and Mitch Starc to play Tests against Pakistan and New Zealand this summer.

Siddle has played 67 Tests and he said the fire still burns inside him to represent Australia.