Paris Saint-Germain superstar Kylian Mbappe is the most valuable player on the planet according to the CIES Football Observatory.
CIES determine a player's transfer value by citing factors such as their salary, their respective club's performance in different competitions and the length of time still remaining on their current contract. This would go some way to explaining Mbappe's position at top spot.
Mbappe shook European football to its core recently when he snubbed a move to Spanish giants Real Madrid in favour of staying put in the French capital. His decision came as a huge shock to many given last summer it seemed like a done deal that he would up sticks to the Santiago Bernabeu once his PSG contract had expired.