Brisbane is believed to be pursuing 24-year-old Tigers’ defender David Astbury.

Astbury has struggled for opportunities in Richmond’s backline and is understood to be open to move to another club.

He has played just 41 games with the Tigers in six years at the club, including only four games since midway through 2014.

The Lions have indicated that they have the salary cap to be prominent players in this year’s trade period, with key talls high on the agenda.

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