Premier League champions Arsenal are looking to strengthen their attacking options with Bournemouth's Eli Junior Kroupi, Manchester United have scouted four Borussia Dortmund players, and Brighton goalkeeper Bart Verbruggen is interested in a move to Real Madrid.
Arsenal are targeting Bournemouth forward Eli Junior Kroupi ahead of the January transfer window but face competition from Bayern Munich and Paris Saint-Germain for the 20-year-old Frenchman.
Juventus winger Kenan Yildiz, 21, is also on Arsenal's radar, although manager Mikel Arteta is prioritising reinforcements in attack.
Manchester United have reportedly scouted four Borussia Dortmund players, including Guinea striker Serhou Guirassy, 30, English midfielder Jobe Bellingham, 21, German midfielder Felix Nmecha, 26, and Swedish defender Daniel Svensson, 24.
Brighton goalkeeper Bart Verbruggen, 24, is reportedly eager to join Real Madrid, with the Dutch international keen on the prospect of a move to the Spanish giants.
Brighton are also monitoring Estoril defender Jordan Arnolin, 18, although the Portuguese youngster is attracting interest from Barcelona.
Sunderland are prepared to provide manager Regis Le Bris with funds during the January transfer window as the club looks to improve its fortunes and strengthen the squad.
Nottingham Forest manager Oliver Glasner has reportedly received the backing of his players following a meeting at the club's training ground, despite growing pressure over the team's performances.
Several Premier League clubs are keeping a close watch on Celta Vigo defender Javi Rodriguez, 23, with the Spanish youngster attracting interest from England.
Atletico Madrid are targeting Almeria midfielder Stefan Dzodic, 21, as the Spanish club looks to reinforce its squad ahead of next season. The young Serbian is reportedly among Atletico's potential transfer targets.