Defensive Midfielder: N'Golo Kante (Chelsea)
Signed for: £30m in 2016
Current Market Value: £72m
It's not often that a player in the defensive half wins Player of the Year in the Premier League. but N'Golo Kante did. The last player to do so was John Terry in 2004/05. Since then it has always gone to a forward or goalscoring midfielder until Kante won it in 2016/17.
The French midfielder is very shy off the pitch (he needed a teammate to request players to hand him the World Cup trophy, for crying out loud) but, on the pitch, he is the exact opposite.
After helping Leicester City win the league in what was supposed to be an outdated 4-4-2 formation where midfielders were always outnumbered, Kante did it again with Chelsea in a different system.
If a club were to try and sign him, especially with Chelsea ready to offer him £290,000 a week in a new deal, expect a price tag of over £90m.