Chelsea join Arsenal in £115m Isak chase - Monday's gossip

Chelsea and Arsenal will have to pay £115m to sign Newcastle United's Alexander Isak, Hamburg consider appointing Ruud van Nistelrooy as their new manager, Jose Mourinho dismisses Fenerbahce links to Cristiano Ronaldo.

Chelsea have joined Arsenal in the race for Alexander Isak - but Newcastle United will demand at least £115m for their 25-year-old Swedish striker. (Teamtalk)

Aston Villa, AC Milan and Juventus will battle it out with Arsenal for Real Madrid forward Arda Guler, 19, with the Spanish club now understood to be open to letting the Turkey international leave on loan. (Caughtoffside)

German club Hamburg are considering appointing former Manchester United interim boss Ruud van Nistelrooy as their new manager after they parted company with Steffen Baumgart. (Sky Sports Germany)

Fenerbahce boss Jose Mourinho has dismissed speculation about the Turkish club making a move for 39-year-old Al-Nassr and Portugal forward Cristiano Ronaldo. (Goal)

Lille and England midfielder Angel Gomes, 24, is set for a return to Manchester United after new manager Ruben Amorim gave the club the green light to re-sign him. (Caughtoffside)

Nottingham Forest are in advanced discussions with full-back Ola Aina over a new contract. The 28-year-old Nigeria international's current deal runs out in the summer, meaning he will be free to negotiate with overseas clubs from January. (Athletic - subscription required)

Crystal Palace manager Oliver Glasner will be backed heavily in the January transfer market as the Austrian bids to bolster his relegation-threatened squad. (Football Insider)

Real Sociedad feel powerless to stop Spain international Martin Zubimendi, 25, from leaving the club, with Arsenal and Liverpool both eager to sign the holding midfielder, who is rated at 60m euros (£49.9m). (Todofichajes - in Spanish)

Wayne Rooney is planning to make a move for Liverpool's English striker Jayden Danns, 18, to bolster his attacking options at Plymouth. (Sun)

Newcastle boss Eddie Howe and sporting director Paul Mitchell have held initial talks with the club's Saudi Arabian owners to discuss their plans for the January transfer market when Slovakia keeper Martin Dubravka, 35, could leave. (Chronicle)

Manchester City are interested in Bournemouth centre-back Illia Zabarnyi and the Cherries could sell the 22-year-old Ukraine international in the summer to raise funds. (Football Insider)