1). Lionel Messi. No player will generate more transfer speculation in January than Barcelona’s Argentine superstar. Messi attempted to engineer an exit during the delayed off-season but there was debate over the validity of the exit clause in his contract. Since then, Barca have hardly done much to convince their captain to sign a new deal, with the club struggling in La Liga. It would be astounding if Messi left in January, but he will be free to discuss terms with other clubs. Where he could end up looks to be down to just a few options. Potential destinations: Manchester City and Paris Saint-Germain. AP

Lionel Messi, Paul Pogba and 21 transfers on the cards for January 2021 - in pictures