Luxembourg coach Luc Holtz isn't surprised by the hype around Metz teen Vincent Thill.
The 16 year-old has already been capped by Holtz at senior level.
Thill's agent has confirmed the interest of Real Madrid and Bayern Munich, while Manchester City are also keen.
Holtz stated: "It is a pleasure to watch him play. You can only stop him by making fouls."
City boss Pep Guardiola has recommended scouts follow Thill in the coming weeks in action for Metz.