Everton reportedly tried to sign Diego Costa from Chelsea

The European transfer window may only have been closed a matter of weeks but already clubs will have an idea where they still need to strengthen in January.

Our friends at Football Whispers have scoured media across Europe for the latest news and transfer rumours.

Spain

Real Madrid will announce a long-awaited contract renewal for midfielder Marco Asensio next week. The 21-year-old will ink a new agreement until 2023 with his buyout clause, a requirement of every contract in Spain, set at a whopping €500m (£442.7m) in order to ward off potential interest from clubs. (AS)

Another Real player who has committed his future to the club is Marcos Llorente. The midfielder, 22, came through Los Blancos' academy set-up and will be presented to the media today after agreeing a deal with a €300m (£265.6m) release clause. (AS)

Diego Costa watched Atletico beat Sevilla on Saturday

Real Madrid forward Cristiano Ronaldo has turned scout for former club Sporting Lisbon. The Portuguese tried to persuade singer Madonna to put her adopted son, David Banda, in Sporting's academy where the former Manchester United man started out. However, Banda has joined city rivals Benfica instead. (AS)

Long-term Atletico Madrid transfer target Diego Costa is finally set to rejoin Diego Simeone's side. But it has emerged Everton made an ambitious £66m offer for the tempestuous Spaniard before Chelsea agreed a price with Atleti this week. (Marca)

Italy

Napoli's flawless start to the new Serie A season was dealt a blow when striker Arkadiusz Milik suffered serious damage to his right knee in Saturday's 3-2 victory over Spal. The Pole spent a chunk of his first season in Italy on the sidelines after tearing his anterior cruciate ligament on international duty and Napoli fear surgery will be needed. (Calciomercato)

Edinson Cavani has emerged as a Milan transfer target following his high-profile falling out with Neymar at Paris Saint-Germain. The Brazilian reportedly ordered PSG's hierarchy to sell the Uruguayan after he refused to give the former Barcelona forward a penalty during last weekend's 2-0 win over Lyon. Cavani, who is the team's designated spot-kick taker, missed the penalty. The 30-year-old played in Italy for Napoli before moving to France in 2013. (Tuttomercato)

PSG stars Neymar and Edinson Cavani were caught up in a few squabbles over who should take free-kicks and penalties PSG stars Neymar and Edinson Cavani were caught up in a few squabbles over who should take free-kicks and penalties

Fiorentina are up for sale. The Florence outfit confirmed in June they were available "given the dissatisfaction of a part of the fan club" but a takeover looks closer with current owners, the Della Valle family, starting the process of selecting a buyer for La Viola. The club, who are believed to be worth £200m, are the seventh most valuable side in Italy according to recent figures. (Calciomercato)

Germany

Pierre Emerick-Aubameyang's move to China could be back on. Tianjin Quanjian chairman Shu Yuhui is keen to sign the Borussia Dortmund goal machine who was, at one point, a Chelsea transfer target. A move over the summer broke down but the CSL club are keen to sign the Gabon star with Shu saying: "He is worth €65-70m. I would pay that too." (SportBild)

Could Pierre-Emerick Aubameyang move to China?

Cologne's vice-president Toni Schumacher has backed under-fire coach Peter Stoger after a start to the season which has seen the Billy Goats lose all five of their Bundesliga figures, scoring just once. He said: "We have been successfully working together for more than four years. Now we have a difficult phase for the first time. It does not help to whine. We have to go through this. And I am sure, with confidence and cohesion, we can do it." (SportBild)

France

Monaco chairman Dmitry Rybolovlev, who has bankrolled the club's spending since buying a 68 per cent stake in the club in 2011, could leave the principality following a mix-up with Swiss art dealer Yves Bouvier. (L'Equipe)

Without the world's most expensive player as Neymar missed out with a foot injury, Paris Saint-Germain were held to a goalless at Montpellier on Saturday. The Brazilian forward's wages have also hit the headlines today with numerous reports claiming he is earning €100,000 (£88,000) a day. (L'Equipe)