Dutch defender, Matthijs de Ligt recently completed a transfer to Juventus from Ajax for £67.8million which follows Joao Felix's move to Atletico Madrid for £113m.
Both these teenagers were in high demand and eventually joined teams that were willing to work the most to get their signatures.
Here, we take a look at five most expensive teenagers in football history:
5. Rodrygo Goes - Santos to Real Madrid - £40 Million
Real Madrid splurged 40million to secure the services of Rodrygo from Santos in 2018, with the teenager joining the club in 2019 on a deal which runs through till 2025. The striker scored 17 goals in 80 appearances for his former club during a three-year spell and is expected to be the next big thing in football.
Sponsored by Nike since the age of 11, the Brazilian may not become a first-team regular under manager Zinedine Zidane and might be sent to the Castilla to get some more experience.
4. Anthony Martial - Monaco to Manchester United - £58 Million
Anthony Martial became the world most expensive teenager when he moved from Monaco to Manchester United in 2015 for an initial fee of 36million rising to 58m. The Frenchman has so far made 174 appearances for the Red Devils, scoring 48 goals but has often been criticised for putting in inconsistent performances.
He is highly rated by the Old Trafford hierarchy and at 23 has the potential to emulate the likes of French legend, Thierry Henry in the future.
3. Matthijs de Ligt - Ajax to Juventus - £67.8 Million
Widely considered to be the best young defender in the world, Matthijs de Ligt enjoyed a brilliant 2018/19 campaign, leading Ajax to the domestic double and the semi-finals of the UEFA Champions League.
He was wanted by a number of clubs including Barcelona and Manchester United, but the 19-year-old eventually choose to move to Juventus, where he will learn from the best.
2. Joao Felix - Benfica to Atletico Madrid - £113 Million
Hailed as the next big thing to come out of Portugal, Joao Felix was highly sought after by a number of top clubs, only for Atletico Madrid to sign him for £113million, thereby making him the fifth most expensive transfer of all-time.
The youngest ever player to score a hat-trick in the UEFA Europa League at 19, he has been signed on a seven-year deal and it will be interesting to see how he progresses under Diego Simeone.
1. Kylian Mbappe - Monaco to Paris Saint-Germain - £165.7 Million
The most expensive teenager in football history, Kylian Mbappe is considered to be a candidate for the Ballon d'Or award in the near future and he is without doubt one of the best players in the world at present.
The Frenchman has now taken up the mantle as PSG's best player from Neymar, scoring 39 goals in 43 games to lead the club to the league title last season.
Five most expensive teenagers in football history