No, not a quality CB. He's got all the physical attributes, strength and pace especially. But he's not a particularly intelligent defender and his positioning can be questionable at times. I can think of 4 or 5 CB's that are better than him in Ligue right now. He's good for Lille though, they play a high line, so his pace comes in very handy for them. He also had an unusually good season last year.