Manchester United have stepped up their scouting of Bologna forward Joshua Zirkzee. The 22-year-old, who has struck seven goals this season, is valued at £26m.
Raphael Varane is open to leaving Man Utd and rejoining former employers Lens in the near future.
But Bayern Munich are considering making a move for Varane and Real Madrid also remain in the race for his signature.
Arsenal are leading the chase to sign Sporting CP centre-back Goncalo Inacio in January. The defender, whose contract contains a €60m (£52m) release clause, is also wanted by Liverpool.
Porto striker Mehdi Taremi is Inter's top target for the January transfer window but the Serie A side have identified Anthony Martial and Armando Broja, of Man Utd and Chelsea respectively, as potential alternatives.
Chelsea are chasing their own striker and recently sent scouts to watch 25-year-old AZ Alkmaar forward Vangelis Pavlidis, who has 18 goals in 16 games in the Eredivisie this season.
Barcelona are expected to sell a defender at the end of the season, with Andreas Christensen and Jules Kounde both edging closer to the exit door at Camp Nou.
Paris Saint-Germain have not yet given up hope of keeping Kylian Mbappe, who will enter the final six months of his contract in January. The French giants are kick-starting a new plan to try and convince him to stay, including offering his brother Ethan a bumper new contract of his own.
Juventus are willing to part ways with 18-year-old midfielder Kenan Yildiz for around €40m (£35m) and Arsenal are considering making such an offer.
Chelsea are showing the most interest in signing Barcelona left-back Alejandro Balde ahead of Manchester City and Manchester United.
Also on Chelsea's radar is Bayer Leverkusen right-back Jeremie
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