Saha joined the club last week following his release by Tottenham, making his debut off the bench in the Black Cats' 0-0 draw at Arsenal on Saturday.
And the Stockton-born midfielder believes the Frenchman's experience will prove vital in the Wearside club's quest for goals.
Cattermole told the club's official website: “Louis has got great experience, you could see that even before the game talking to the lads in the dressing room.
|7/1||Sunderland are 7/1 to beat Reading 2-0 at the Stadium of Light on Saturday with bet365|
“He’ll be great for us. Coming on and holding the ball up for us helped because I thought we got deeper and deeper. I think he’ll be a great signing for us.
“We’ve got experience through the team with the like of John O’Shea and Carlos Cuellar, Titus Bramble and Matt Kilgallon. All of them are big talkers.”