Pogba, Mbappe, Christensen: The most valuable players out of contract this summer

According to a report by The Sun on Monday, Chelsea centre-back Andreas Christensen is moving ever closer to a move to Barcelona on a free transfer.

The 25-year-old is out of contract at Stamford Bridge this summer – and is understood to have already agreed personal terms in principle at Camp Nou, having previously rejected Chelsea’s offer of a new five-year deal to stay in west London.

Bayern Munich had also been linked with a swoop for the Danish international, but it appears increasingly likely that La Liga will be Christensen’s next destination after he completed the first part of his medical with Xavi’s side last week.

The remainder of that process is set to be undertaken this week, after which Barcelona and Christensen could technically announce the deal.

If Christensen does land in Catalonia, though, he is likely to be far from the only big name to be involved in a blockbuster free transfer this summer.

The amount of top-tier talent that will be out of contract at the end of June this year is staggering, with some genuine superstars of the game eligible to leave their current clubs without a penny being required in terms of a transfer fee.

With the help of Transfermarkt, we’ve taken a look below at the 20 most valuable players in the world who are out of the contract before the start of next season – and a few sides set to lose some seriously valuable assets for nothing.

20. Florian Grillitsch (Hoffenheim | £14.4 million)

19. Luiz Felipe (Lazio | £16.2m)

18. Andrej Kramaric (Hoffenheim | £16.2m)

17. Noussair Mazraoui (Ajax | £18m)

16. Jason Denayer (Lyon | £18m)

15. Alessio Romagnoli (AC Milan | £18m)

14. Jesse Lingard (Man Utd | £18m)

13. Alexandre Lacazette (Arsenal | £18m)

12. James Tarkowski (Burnley | £19.8m)