10 Most overpriced transfers of 2018

#8 Kylian Mbappe & James Maddison

Kylian Mbappe (L) & James Maddison (R)

Kylian Mbappe

Market Value: €120 million

Transfer Fee: €135 million

Difference: €15 million

The world's most expensive teenager and the second most expensive transfer of all-time, Kylian Mbappe made his move to Paris Saint-Germain permanent over the summer for a fee of €135 million.

When discussing value for money there are many factors at play and as Mbappe is a very young player with a World Cup winner's medal to his name already, this transfer is perhaps not such bad business for the Parisian club.

However, according to the cold, hard facts, the French champions paid €15 million over market value for the teenager and this fee has landed the club in hot water with UEFA Financial Fair Play.

James Maddison

Market Value: €10 million

Transfer Fee: €25 million

Difference: €15 million

At the opposite end of the transfer scale, James Maddison's move from Norwich to Leicester was just as overpriced as Kylian Mbappe's move to Paris.

The attacking midfielder had impressed in the Championship last term and Leicester made him one of their main summer transfers by forking out €25 million for his services. The fee is a huge €15 million more than the 21-year-old's current market value.

Maddison has started the season brightly, playing in all four of Leicester's Premier League matches so far and notching himself a goal. The Englishman will need to continue that form if he wants to justify his high transfer fee.