"He had been loaned out to Monaco and Levante and we felt we could give him a platform in the Premier League to kick-start his career again.
"Like we did when we brought in Christophe Dugarry, we've given him a lot of responsibility and he's responded.
"He's got all the ingredients. He's a top-class athlete, he's supremely gifted and he has got a wonderful left foot.
"At times he is that easy-going, laid-back type. And he has had to adjust to the Premier League after the slower tempo of where he had been before.
"But Olivier's done a great job for us. He is very popular among the players and is no trouble at all."