I might be barking up the wrong tree, but are you thinking of Winston Bogarde? Yes, I know he's Dutch, not French, but he was at Chelsea for four years "earning" over 40 grand a week. He played, probably, less than ten matches, mainly League Cup. Chelsea couldn't get rid of him, because he wouldn't move anywhere to be on less money. He was relegated to the reserves, then sent to train with the youth team in an effort to offload him, but he saw out his lucrative four year contract to the end.