Who are the players today that are being linked with moves away from their current clubs?
Which teams are keen on strengthening their ranks ahead of the second half of the season?
Find out the answers to those questions by reading today's transfer rumour roundup...
10. Cameron Brannagan
Transfer: Liverpool to Oxford United
Having never broken into the first team on Merseyside, Cameron Brannagan is giving up on the prospect of top flight football for the time being and is expected to sign for League One side Oxford United in the coming days.
9. Charly Musonda
Transfer: Chelsea to West Bromwich Albion
After being tipped to join Bournemouth yesterday, Chelsea youngster Charly Musonda is now the subject of a Premier League tug-of-war, with a number of clubs, including top flight strugglers West Brom, aiming to bring the Belgian in on loan.
8. Martin Dubravka
Transfer: Sparta Prague to Newcastle United
After PSG stopper Kevin Trapp opted to remain second choice at the Parc des Princes, Newcastle United have turned instead to Slovakian international goalkeeper Martin Dubravka as a potential January arrival.
7. Abdoulaye Doucoure
Transfer: Watford to Everton
The Hornets are doing all they can to tie down the long-term future of in-form midfielder Abdoulaye Doucoure, with reports emerging that Everton are contemplating a move for the 25-year-old.
6. Manuel Akanji
Transfer: FC Basel to Southampton
Despite heavy interest from both Liverpool and Borussia Dortmund, FC Basel centre-back Manuel Akanji is also being targeted by Southampton, who are keen to fill the void left by Virgil van Dijk.
5. Pau Lopez
Transfer: Espanyol to Juventus
You may remember Pau Lopez for having a completely forgettable loan spell at Spurs last season, but the young Spanish stopper is now being lined up by Serie A giants Juventus, who are keen to acquire the 23-year-old.
4. Fyodor Smolov
Transfer: Krasnodar to West Ham
Krasnodar striker and Russian national team captain Fyodor Smolov is hoping to make his way to the Premier League to sign for the Hammers, with space being made available due to Diafra Sakho's impending departure.
3. Alexis Sanchez
Transfer: Arsenal to Manchester United
Jose Mourinho's Manchester United have emerged as a shock contender to swoop for the soon-to-be out-of-contract Arsenal star Alexis Sanchez, with the Chilean forward previously expected to sign for United's local rivals, Manchester City.
2. Alex Telles
Transfer: Porto to Chelsea
Despite reported interest from Championship leaders Wolverhampton Wanderers, Porto full-back Alex Telles could be on his way to Stamford Bridge in the near future after the player's agent admitted that his client will be a Chelsea player one day.
Transfer: Barcelona to Arsenal
Yet to play a game this season for the Blaugrana, mainly due to injury, Rafinha Alcantara may need to give up on his Barcelona dream in order to play regular football and Arsenal could well give the 24-year-old first-team opportunities.