The defender has been sidelined by a knee injury.
Andre Villas-Boas explained: "Unfortunately, Younes had some discomfort in his patella tendon, so he went to see a specialist to analyse his knee. We’re not looking at anything serious."
Otherwise, there was good and bad news for Andre as he prepares to face the Baggies at the Lane.
He added: "Scott Parker is making a good recovery but Gio was unlucky in a training session today, he pulled his calf muscle. It’s poor news for him because it was his first training session. There are a couple of other things, but nothing major."