7) Kasper Dolberg (Ajax)

Country: Denmark
Position: Forward
Age: 19
All it took was one look at a trial for Ajax to go to Kasper Dolberg's house to convince his parents to send him to the Dutch club. They readily agreed and it didn't take long to come to a decision. He would be trained by Dennis Bergkamp after all.
Drawing comparisons with Dutch legend Marco van Basten, he initially arrived at the club as a promising winger. But Bergkamp did his magic and converted him into a number 9.
The 6'2" forward has since burst on to the scene in the Eredivisie and scored goals for fun in his debut season. In all competitions, he managed to find the net 23 times - astonishing numbers for a teenager in his first season as a full-fledged senior.
He'd also scored 7 goals in Europe as Ajax finished runners-up in the Europa League. He also walked away with the Dutch Football Talent of the Year award.
“We’ve had interest from all over Europe, especially from England. All of the top clubs in England have been in touch – and in Spain as well." - Dolberg’s agent
Dolberg had been linked with Manchester United, Real Madrid and even Borussia Dortmund but he's stayed at Ajax at least for another season.