Manchester United and Chelsea are among the Premier League clubs who could lose millions of pounds worth of talent during the January transfer window with out of contract stars free to agree to summer moves.
With Kylian Mbappe set to agree a switch to Real Madrid on the expiration of his PSG deal, Paul Pogba and Antonio Rudiger are in a similar position as 2022 fast approaches.
While some clubs are happy for their fringe stars to sort their futures out early, others will be frantically trying to agree on new terms to avoid painful financial departures.
Daily Star Sport has taken a look at the eight of the most valuable players that are out of contract next summer, with stars from United, Chelsea, Juventus and PSG all included.
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