Barcelona and Juventus could be set for a surprise player swap this transfer window.
Sporting CP want an improved offer from Manchester United for midfielder Bruno Fernandes.
West Ham are said to want England's Ross Barkley, while Atletico Madrid still fancy Edinson Cavani - but not at PSG's asking price.
Paris Saint-Germain boss Thomas Tuchel is eager for Edinson Cavani to remain at the club, but acknowledges the striker could leave.
Atletico Madrid are reportedly stepping up their efforts to sign Edinson Cavani and the PSG striker will miss the trip to Monaco.
Manchester United may be ready to finally complete a deal for Sporting CP midfielder Bruno Fernandes.
The future of Mauro Icardi remains a matter of rampant speculation amid a prolific return to form at PSG, where he is on loan from Inter.
With Ole Gunnar Solskjaer under pressure, former Juventus boss Massimiliano Allegri is reportedly eyeing the top job at Old Trafford.
After falling out of favour at Paris Saint-Germain, Edinson Cavani had been linked with a January exit, but that now looks unlikely.
Having starred for Wolves, Adama Traore is linked to three of Europe's biggest clubs.