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Lionel Messi, Erling Haaland, Paul Pogba, Mohamed Salah, Harry Kane and many others face a crucial summer, but time will tell how many will move.

(0:59) The transfer market this summer is setting up to be unlike any other in recent memory, with a host of star players seemingly lined up for big moves and some of the world's top clubs struggling to find a way to sign their targets while also keeping their best players.



Jurgen Klinsmann joins ESPN FC to have his say as to where Erling Haaland should play next season.



- Stream ESPN FC Daily on ESPN+ (U.S. only) - ESPN+ viewer's guide: Bundesliga, Serie A, MLS, FA Cup and more Mark Ogden: Some big deals will get done this summer, but only when it's the best option for the selling club.



James Olley: Without the pandemic, there is a natural rhythm -- defined by factors including a player's age, length of contract and time spent at their existing club -- which would suggest transfers involving Haaland, Kane, Ronaldo, Pogba, Salah and Messi were all distinctly possible for varying reasons this summer.

Manchester United may decide that selling Pogba, rather than allowing him to leave as a free agent next year, is the most sensible option, but if a club has a player tied to a long-term contract -- for example, Kane has three years to run on his deal at Tottenham -- then the financial impact on football caused by the pandemic means that potential buyers will have to raise money that simply isn't there.

Ogden: Even football's biggest clubs are struggling.
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