Time can fly in football. Just ask Kylian Mbappe, who scored his first professional goal five years ago as a relative unknown and is now the highest-valued player in the world.
Back then he wasn't the Kylian Mbappe we know now, in fact he went by Kylian Mbappe Lottin, using both surnames.
On February 20, 2016, he was subbed on by Monaco against Troyes with a quarter of an hour remaining for his fifth senior appearance at 17 years and 62 days.
His left-footed strike in stoppage time of a 3-1 win made him Monaco's youngest goalscorer in Ligue 1, ahead of previous record holder Thierry Henry.
At the time, the website Transfermarkt put the young Frenchman's market value at a mere 250,000 euros.
Five years and 96 league goals later, the same source rates Mbappe at 180 million euros, well ahead of any other player on the planet.