Football transfer rumours: Man Utd in four-team chase for De Jong; Liverpool eye Chelsea striker | OneFootball

90min rounds up the latest transfer news, rumours and gossip circulating around the world...

Manchester United are involved in the competitive race to sign Barcelona midfielder Frenkie de Jong. Chelsea have also cast an admiring glance in the Dutchman's direction but Arsenal and Liverpool are thought to be best placed. (Todofichajes - Spain)

Liverpool are willing to splash €60m (£50.9m) on Stuttgart midfielder Angelo Stiller. The Bavarian-born 24-year-old has also attracted extensive interest from Bayern Munich. (Fichajes - Spain)

Chelsea are open to offloading Wesley Fofana this summer. There is interest in Marseille about a potential loan while several Saudi Pro League clubs would be prepared to complete a permanent transfer. (Sebastien Vidal)

Barcelona's sporting hierarchy have "closed the door" to a move for Arsenal and Chelsea target Nico Williams, shifting their focus onto Atalanta's €50m (£42.4m) forward Ademola Lookman. (El Nacional - Spain)

Tottenham Hotspur midfielder Lucas Bergvall has caught the eye of European giants Real Madrid. (GIVEMESPORT)

Aston Villa are bracing themselves for offers from Saudi Arabia for goalkeeper Emi Martinez and peripheral forward Leon Bailey. (The Telegraph)

Crystal Palace's deep-lying playmaker Adam Wharton will cost at least £80m if he is to join Liverpool this summer. (TEAMtalk)

Despite his steep asking price, Arsenal and Liverpool both rate Alexander Isak as their first-choice striker target this summer. (David Ornstein)

Adam Wharton has been in fine form for Crystal Palace as of late / Sebastian Frej/MB Media/GettyImages

In their search for a centre-forward, Liverpool have begun negotiations with Chelsea's wantaway forward Christopher Nkunku. (TEAMtalk)

Real Madrid are planning to snap up Como playmaker Nico Paz as the long-term successor to Luka Modric. (DefensaCentral - Spain)

Barcelona have been convinced to buy a new left-back following the poor performances of back-up defender Gerard Martin. Bayer Leverkusen's Alejandro Grimaldo is the first name on the club's wishlist. (El Nacional - Spain)

Tottenham and West Ham are rivalling Manchester United for Inter's mobile defender Yann Bisseck, who is expected to be available for €55m (£46.7m). (CaughtOffside)

Juventus are mulling over a swap deal which would see Douglas Luiz head to Newcastle and Sandro Tonali move in the opposite direction. (TVPlay - Italy)

Juve have also shown some interest in Atalanta midfielder Ederson, but will face stiff competition from Man Utd. (Tuttosport - Italy)

Barcelona have waded into the competitive race to sign River Plate's record-breaking 17-year-old Franco Mastantuono. Arch-rivals Real Madrid are said to be frontrunners, while Chelsea and Man Utd are both credited with interest. (CaughtOffside)