The 27-year-old has signed a three-year deal at the JJB Stadium following a medical yesterday.

Bruce, who took him to Blues last summer, said: "Yes, he's one I really wanted to get on board.

"Olivier's a real fighter, but he has a touch of quality about him.

"He can play in a number of positions and having worked with him in the past, I know what a good addition to our squad he will be.

"He has Premier League experience, which is important, and I'm confident he will do well here."