This season's January transfer window is guaranteed to be a busy period for Premier League clubs. And what could grab the headlines more so than signings is if the future of those with expiring contracts is resolved. Alexis Sanchez, Ross Barkley and Emre Can are just three players who can sign a pre-contract with other clubs in the winter market, with their current deals reaching their conclusion in the summer. In light of this, talkSPORT.com has taken a look at the 10 most valuable players, based on valuations from Transfermarkt, free to agree a move to a rival team in January. Scroll through the gallery above to see who features.
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