ADELAIDE coach Neil Craig reckons it's unlikely his former players Scott Welsh and Ben Hudson can unlock any Crows secrets.

The Crows traded forward Welsh and ruckman Hudson to the Western Bulldogs, and both will line-up for their new club against their former teammates on Sunday at the Telstra Dome.

Craig was dubious about the value of any in-house information that Welsh and Hudson can offer their new club.

"There will some stuff," he says.

"But it varies from player to player.

"You get some players who come into your footy club who are quite studious in terms of the game and bring quite a bit of information, and sometimes in depth information.

“Other players come to our club and it's pretty general information.

"Most of it is confirmation (of what you already know).”

Welsh and Hudson will debut for Bulldogs in a milestone game for their new club: captain Brad Johnson will notch his 300th game on Sunday.

But the club favourite said winning was more important than the milestone.

"For me it is about winning the game and starting the season the way we want to continue," he says.

"The milestone is great and I'm really proud of my achievement but at the end of the day I want to win the game.”