Paris Saint-Germain forward Kylian Mbappe tops the list of the most valuable U21 players in world football, according to CIES Football Observatory.
The PSG ace is considered to be the most lucrative young asset in European football, with star turns from Manchester City and United making the top 10.
Their latest study shows that the 18-year-old France international has seen his stock continue to rise over the last three months, taking his price tag to €182.8 million.
Mbappe has netted eight times in 17 appearances for PSG since joining from Monaco over the summer on an initial loan which will be turned into a €180m deal in 2018.
Sitting just behind the French starlet on the U21 chart is Tottenham’s Dele Alli, with the England international midfielder now considered to be worth €180.2m.
His Premier League rival, Manchester City winger Leroy Sane, is third at €124.5m, while Barcelona’s Ousmane Dembele is still valued at €120.4m despite seeing his rating drop on the back of an injury-hit start to his time at Camp Nou.
Manchester United’s 20-year-old frontman Marcus Rashford completes the top five, with it expected that he would demand a €116.7m fee were he to leave Old Trafford.
Elsewhere, Leicester midfielder Wilfred Ndidi is thought to be worth €64.8m, placing him just above AC Milan’s teenage goalkeeper Gianluigi Donnarumma (€55.7m).
The ongoing development of Marco Asensio at Real Madrid means that he is now valued at €50.7m, while Chelsea have a €47.6m defender on their hands in the form of Andreas Christensen.
Fiorentina’s Federico Chiesa (€52.6m), Roma’s Lorenzo Pellegrini (€50.7m), AC Milan’s Franck Kessi (€47.6m), Monaco’s Youri Tielemans (€46.2) and Real Madrid duo Daniel Ceballos (€43.8m) and Theo Hernandez (€42.8m) complete the top 20.