The dimunitive midfielder is a family friend and Zidane will check on how he handles Atletico Madrid in the Europa League final.
The Real coach admits he will be watching the game and supporting former club Marseille.
And on Lopez, Zidane revealed: "He played with my children and had an exceptional technique for his age and height. When we see him, we can think he's very small, but I'm not surprised how he's playing right now.
"It is fascinating what he is doing, because what impresses me is his personality. He runs a lot, sacrifices himself and makes others play."