The Real Madrid defender does not feel the World champions have lost their drive, despite their disappointing performance against Finland on Friday
Vicente del Bosque's side were forced into a share of the spoils at home by both les Bleus and Finland, and find themselves second in Group I with four games left to play.
But Varane, who plays for Real Madrid at club level, is certain that la Roja will pose a stern threat at the Stade de France on Tuesday.
"I don't think Spain are a team in decline. I think this team are still very eager and motivated," he told Uefa.com.
"I know some of the players and they are still hungry. They are not ready to surrender games."
Deschamps was also wary of what Del Bosque's side can produce and will not be taking them lightly despite their dip in form.
"We know them, and we know what they are capable of. When they have the ball, they attack well," he said at a press conference.
"They know how to do it. Then they are less powerful when they have to defend."