Sydney chief executive Matthew Pavlich expresses "bitter disappointment" after Tom Papley's drug test result hurls the AFL club back into the spotlight.

In short:

Chief executive Matthew Pavlich said the club was “bitterly disappointed” in having to address reports of a poor culture at the Sydney Swans.

The club has said it is undertaking a “comprehensive examination” of its AFL program.

Tom Papley allegedly returned a positive roadside test for methylamphetamine on Monday.