The young forward has been crucial to Villa's chances of avoiding the drop. Lambert has gone out of his way to nurture that talent this season.
"Since Emile Heskey left the club, it's the type of player we have never had," said Villa's boss, "we spoke to people and then said: 'Okay, let's see what you can go and do.'
"If Christian can keep his feet on the ground and maintain his humility, he can be a top, top player.
"He's not the finished article by any stretch.
"His value...I don't know what it is. He has been fantastic. I've got a good relationship with him. I don't put any pressure on him."