Chelsea are targeting Brighton midfielder Yasin Ayari, Barcelona and Real Madrid are monitoring Aston Villa's Johan Manzambi, while Arsenal could consider selling striker Viktor Gyokeres.
Chelsea have joined Galatasaray in the race to sign Brighton's 23-year-old Sweden international midfielder Yasin Ayari.
Liverpool are in no hurry to begin contract negotiations with Argentina midfielder Alexis Mac Allister, despite the 27-year-old's improved performances this season.
Manchester United are among several European clubs expressing interest in FC Twente's highly rated Dutch centre-back Ruud Nijstad, 18.
Barcelona and Real Madrid are closely monitoring 21-year-old Switzerland midfielder Johan Manzambi following his impressive start to life at Aston Villa.
Sunderland are preparing a fresh approach to sign Sporting's 25-year-old Mozambique international winger Geny Catamo during the January transfer window.
Everton have identified Dinamo Zagreb's 24-year-old Croatia striker Dion Beljo as one of several potential attacking reinforcements ahead of January.
Liverpool face competition from several leading European clubs for Tijuana's highly rated 18-year-old Mexico midfielder Gilberto Mora.
Arsenal are reportedly willing to part ways with Sweden striker Viktor Gyokeres, 28, as they look to recover the £55m spent on his transfer. A summer departure is considered more likely than a January move.
Brazil international Vinicius Jr, 26, was reportedly tempted by a move to Arsenal during the summer transfer window but now hopes to spend the remainder of his career at Real Madrid.
Arsenal have emerged as frontrunners among Premier League clubs pursuing Eintracht Frankfurt's 20-year-old Turkey international midfielder Can Uzun.
