"I am very happy to be here at this big club," declared the 34-year-old Frenchman.
"I have found a great group and working with them will be a real pleasure for me. I want to give my best. I am here to help the team during this injury and I'm happy to do it.
"I know on Saturday it will be a big game against Napoli and I am here to help. In life you must always try to give your best. I am a very competitive person, so the important thing is to always do better.
"This is a great team and a great country. I am happy to be here."