Speaking to Barca One, Flick said: "Lamine is a genius, there's no other way to describe him, and he's only 17 years old. I think we have to help him. I hope he wants that too, that we can take care of him, because he's young and right now it seems like everything is easy. And it might seem easy, but it's not.
"If you want to play at the highest level for the next 15 years, you have to train very well and also be mentally at the highest level - that's what matters. Lamine is smart, he's intelligent, and it's not just about enjoying everything. You also have to work and work, because players with this kind of talent have to do that too."