When examining the fees paid between last summer and the current transfer window which is rapidly approaching its deadline, new highs have been set in terms of fees for players aged 18, 20, 25, 26, 30 and 32 - and now, with Pellegri, 16.
Pietro Pellegri's transfer from Genoa to Monaco is notable for various reasons, among which is the player's age and the fee. The Ligue 1 champions have spent £18million on a 16-year-old with 10 first-team appearances to his name, a world record for a player his age.
Earlier in the season, Real Madrid surpassed the amount splashed out by Manchester United for Luke Shaw when they made Vinicius Junior the most expensive 18-year-old in the world. £40million they paid Brazilian side Flamengo.
It was Barcelona's turn in the summer to break another age record, signing 20-year-old Ousmane Dembele for £92million from Borussia Dortmund. A fee that could rise considerably if the bonus clauses are triggered.
The overall world record was smashed by Paris Saint-Germain's £200million swoop for Neymar from Barcelona. Unsurprisingly, the Brazilian also surpassed the fee Shanghai SIPG had paid for Oscar after the former Chelsea player himself broke Hernan Crespo's 15-year-old record for a player aged 25.
Virgil Van Dijk not only became the most expensive defender this January. The Dutchman's £75million switch from Southampton to Liverpool also surpassed the previous record fee paid for a 26-year-old.
Also a centre-back, Leonardo Bonucci's £37million move from Juventus to AC Milan made him the most expensive 30-year-old, while nobody has ever paid more for a 32-year-old than the £13million Tottenham put forward for Fernando Llorente. Market inflation continues and fees continue to grow, which age-based record will be broken next?