The Ivory Coast international has been unavailable for the Blues because of a suspension he received in last year's semi-final but after the win over Bolton on the weekend, he pulled up with a slight leg problem that could keep him out of the fourth group stage match.
"I would like to change something and we have fresh players in good condition. I want to use all the players because we have a lot of matches and we have to play well every game. I think it would be good for us to change something against Atletico Madrid."
"Didier is obviously a top-class player and in great form as well," said the midfield star. "Everybody would want him back and involved, but I think we've done very well without him.
"It's just a big bonus he's back and hopefully he can step straight in and carry on with his league form because he's scoring in every game at the moment.
"It will be a very difficult game, but we understand if we win against Atletico, we are through. We know how tough it will be and they are a very good attacking team. They have the quality to make it difficult for us."