The Western Bulldogs have asked the AFL to investigate the alleged leaking of sensitive game-day information by a Bulldogs player to Adelaide ahead of the elimination final.

The Bulldogs confirmed late on Tuesday that they had been made aware of the possibility that information relating to their game plan had found its way to the Crows.

It is understood defender Michael Talia, whose brother Daniel is the Adelaide full-back, is at the centre of the investigation.

Talia, who is out of contract and likely be traded, did not play in the last three games of the season, including the final in question.