The 20 most expensive footballers in the world - with Cristiano Ronaldo at No.20

The summer transfer window has really begun to click into gear, with Eden Hazard's move to Real Madrid potentially kickstarting the huge deals that we could see the biggest clubs pull off this summer.

But who really are the most expensive players in world football right now?

There are loads of things to take into account when you think of such a thing, of course, and luckily we haven't had to do that.

Not because we don't want to, of course. But because the CIES Football Observatory have done it for us.

That's right, everyone's favourite football observatory have crunched the numbers and taken things like age, contract length and position into account when coming up with their definitive list of the costliest players in the game's top five leagues - England, France, Italy, Germany and Spain - right now, with some potentially making moves during this transfer window and one doing so already.

These two are in the top 10 (Andrew Powell)

And we're going to show you the top 20.

It is a list that includes 12 Premier League players, 10 Ballons d'Or, four Englishmen and four new European champions, and showcases the very best and brightest in the world game.

20. Cristiano Ronaldo - £104.9m

Ronaldo's age counts against him for this one (AFP/Getty Images)

 

19. Eden Hazard - £107.2m

Did Real Madrid get a good deal? (Helios de la Rubia)

18. Marcus Rashford - £109.7m

The Manchester United forward is still to sign a new contract (Dan Mullan)

 

17. Neymar - £110.8m

The Brazilian's value has plummeted of late (Buda Mendes)

 

16. Paul Pogba - £111.1m

The World Cup winner has seen his value fall of late (Getty Images)

 

15. Romelu Lukaku - £111.2m

Lukaku has been linked with a move to Italy this summer (Action Images via Reuters)

 

14. Philippe Coutinho - £114.9m

Coutinho could be heading for the exit at Barcelona (Getty Images)

13. Trent Alexander-Arnold - £115.6m

The 20-year-old is priceless to local club Liverpool (Liverpool FC via Getty Images)

 

12. Gabriel Jesus - £116m

The forward has enjoyed a trophy-filled season at Manchester City (Getty Images)

 

11. Bernardo Silva - £116.3m

 

10. Leroy Sane - £121.8m

The German is a Premier League champion for the second time (Getty)

 

9. Antoine Griezmann - £127.7m

The World Cup winner is expected to join Barcelona this summer (ATEF SAFADI/EPA-EFE/REX)

8. Roberto Firmino - £128.1m

Firmino is now a Champions League winner (Andrew Powell)

 

7. Harry Kane - £137.8m

Kane will be looking to regain the Premier League Golden Boot next season (Matthias Hangst)

 

6. Sadio Mane - £140.1m

Mane enjoyed his most prolific season for Liverpool (Soccrates/Getty)

 

5. Jadon Sancho - £141.6m

The England star's youth makes him a particularly hot property (AFP/Getty Images)

 

4. Lionel Messi - £148.7m

He may have been around forever, but he'll still cost you (Getty Images)

3. Raheem Sterling - £184.6m

Sterling enjoyed a brilliant season with City (Action Images via Reuters)

 

2. Mohamed Salah - £195m

Liverpool's Egyptian King comes in at No.2 (Andrew Powell)

 

1. Kylian Mbappe - £223.8m

Mbappe's yoouth and quality mark him out as the most expensive player in the world (Getty Images)