The transfer window officially opens for business next week, with the negotiations over a handful of deals that could transform the second half of the season already at an advanced stage.
Changes to the Champions League rules mean players signed in the January transfer window who have already made appearances in the competition will be allowed to play for their new clubs, with that tweak in the rules adding to the intrigue in the next few weeks.
It adds up to a transfer story that will dominate the football agenda throughout January, with these names in the frame for big-money moves.
Club: Red Bull Leipzig
Linked with: Liverpool, Real Madrid, Chelsea
Liverpool manager Jurgen Klopp has been a big admirer of Werner and his prolific form in the German Bundesliga this season has fuelled links with a switch to Anfield.
Suggestions that he has a €30m release clause in his Leipzig contract have alerted most of Europe’s top clubs to his possible availability and despite his tender age of 23, Werner has plenty of experience that ensures he is a proven performer.
ERLING BRAUT HAALAND
Club: Red Bull Salzburg
Linked with: Manchester United, Juventus, Red Bull Leipzig, Borussia Dortmund
One of the most talked-about players in European football looks certain to move from Salzburg next month as his £17m release clause has sparked a scramble for his services, but this transfer has a few intriguing sub-plots.
Haaland has been offered a deal to move within the Red Bull family by joining Leipzig and that would allow the organisation to increase his release clause for a future sale, but Manchester United remain hopeful a long-standing relationship with his former Molde boss Ole Gunnar Solskjaer will allow them to sign the 19-year-old, who scored eight goals in the Champions League group stages. Juventus are also in the mix to sign Haaland and have a strong relationship with his agent Mino Raiola.
Club: Crystal Palace
Linked with: Chelsea, Tottenham
Zaha made it clear that he wanted to leave Crystal Palace last summer and has since changed his agent after failing to seal a move to Arsenal.
Now he is believed to be a target for Chelsea and while Selhurst Park chiefs will demand a fee in excess of £70m for their star man, it may be that breaking point is arriving as he looks to play for a Champions League team.
Club: Borussia Dortmund
Linked with: Manchester United
This 19-year-old England attacking prospect is one of the brightest stars in the European game and there are suggestions that he is agitating for a move back to his homeland after some disciplinary issues with Dortmund.
Sancho has confirmed his class by scoring in a run of games in November and December, but there is a feeling that he has his heart set on a move to Manchester United at some point in 2020.
Linked with: Real Madrid, Manchester United
This Danish midfielder has lost his way badly at Tottenham and he has told new manager Jose Mourinho that he wants to leave the club as soon as possible.
With his contract expiring next summer, Spurs look certain to cash in on their unsettled star next month and it remains to be seen whether viable offers are made for a player who has been out-of-form for most of 2019.
Club: Real Madrid
Linked with: Tottenham, Manchester United, Chinese clubs
Every transfer window over the last couple of years has seen Bale linked with a return to England and after his agent Jonathan Barnett recently suggested his star client was ready to consider his options away from Real Madrid following a turbulent few months on and off the field, this could be the time when it happens.
The Welshman’s ongoing injury issues would mean he would be an expensive risk for any Premier League club, but a possible swap deal, with Eriksen moving to Real Madrid and Bale returning to Tottenham, is a solution that could work for all parties with Spurs boss Jose Mourinho a long-time admirer of his talents.
Club: Manchester United
Linked with: Real Madrid
United manager Ole Gunnar Solskjaer has insisted United will not sanction the sale of Pogba in January, but the midfielder who has barely played this season due to injury issues continues to be linked with a move to Real Madrid.
If the Spanish giants offered Gareth Bale as part of a deal that saw Pogba make a move to the Spanish capital, it could be a solution that could work for both clubs and the two high-profile players.