As the January transfer window edges closer, Sports Mole has gathered the latest speculation emerging from the rumour mill.

Wednesday morning's headlines:

Atletico Madrid 'ready to trigger Diego Costa's £28m release clause'
Atletico Madrid are reportedly ready to up their efforts to re-sign Chelsea striker Diego Costa. Read more.

Agent: 'Alberto Moreno could join Real Madrid'
Liverpool defender Alberto Moreno would be open to the idea of joining Real Madrid in January, according to the Spaniard's agent. Read more.

Manchester United 'join chase for Borussia Dortmund's Pierre-Emerick Aubameyang'
Manchester United become the latest side to be linked with Borussia Dortmund striker Pierre-Emerick Aubameyang. Read more.

Report: Cristiano Ronaldo's mum wants Manchester United return for her son
A report claims that Cristiano Ronaldo's mother Dolores Aveiro wants her son to re-join Manchester United from Real Madrid in the summer. Read more.

Arjen Robben plays down Manchester United link
Bayern Munich winger Arjen Robben has played down suggestions that he will join Manchester United to team up again with Red Devils boss Louis van Gaal. Read more.

Ander Herrera quashes unhappiness rumours
Manchester United midfielder Ander Herrera takes to Twitter to deny reports that he is unhappy with life at Old Trafford. Read more.

Xabi Alonso unsure over Bayern Munich future
Despite being "happy" at Bayern Munich, Xabi Alonso is unable to confirm if he will remain with the German club beyond the end of the current campaign. Read more.

Tottenham Hotspur to battle Arsenal for Paris Saint-Germain's Adrien Rabiot?
Tottenham Hotspur are reportedly planning to take on Arsenal in the battle for Adrien Rabiot's signature from Paris Saint-Germain. Read more.

Chelsea having trouble getting rid of Radamel Falcao?
Chelsea are reportedly struggling to offload Radamel Falcao, who has made just two starts and scored a solitary goal since joining on loan from Monaco in the summer. Read more.

Simon Mignolet to be offered new Liverpool contract?
Liverpool are reportedly planning to offer goalkeeper Simon Mignolet a new contract. Read more.

Sunderland enter race to sign Tottenham Hotspur's Andros Townsend?
Sunderland reportedly put plans into place to challenge Newcastle United for Tottenham Hotspur's Andros Townsend. Read more.

Lille 'eyeing Newcastle United forward Yoan Gouffran'
Newcastle United striker Yoan Gouffran is linked with a January move to Ligue 1 side Lille. Read more.

Liverpool to swap Mario Balotelli for Diego Lopez?
Liverpool are reportedly lining up a swap deal with AC Milan involving Mario Balotelli and Diego Lopez. Read more.

Iker Casillas talks up possible MLS move
Porto's veteran goalkeeper Iker Casillas reveals that he would be interested in finishing his career in the MLS. Read more.

Jamie Vardy: 'Leicester City match my ambitions'
Leicester City frontman Jamie Vardy insists that he can achieve his ambitions with the club, amid reports linking him with a move away. Read more.

Report: Aston Villa rejected loan bid for Libor Kozak
Gary Rowett failed in a bid to sign Aston Villa striker Libor Kozak on loan, according to reports. Read more.

Igor Rossi signs new Hearts deal
Brazilian centre-back Igor Rossi pens a new contract with Scottish Premiership side Hearts, which will run until May 2017. Read more.

Jurgen Klopp 'allowed' to go after Borussia Dortmund players in transfer window
Borussia Dortmund CEO Hans-Joachim Watzke says that there would be no problem with Jurgen Klopp should the Liverpool manager try to sign one of their players Read more.

Lorenzo Tonelli signs new Empoli deal
Defender Lorenzo Tonelli agrees a new contract with Empoli that runs until the summer of 2019. Read more.

Queens Park Rangers swoop for Australian youngster Joshua Wallen
Young Australian midfielder Joshua Wallen signs an 18-month contract with Championship side Queens Park Rangers. Read more.

Agent: 'Antonio Candreva not joining Inter Milan'
The agent of Lazio midfielder Antonio Candreva strongly denies suggestions that his client will join Inter Milan in the January transfer window. Read more.

Luis Enrique hints at January signings
Barcelona boss Luis Enrique says that he 'would like to sign new players' in the January transfer window should the opportunity arise. Read more.

Report: Emmanuel Adebayor to return to England
A report claims that former Tottenham Hotspur striker Emmanuel Adebayor will return to England this week as he attempts to find a new Premier League club. Read more.

Report: Southampton favourites to sign Charlie Austin
A report claims that Southampton are leading the race to sign Queens Park Rangers centre-forward Charlie Austin in January. Read more.

Report: Wolfsburg monitoring Ajax youngster Riechedly Bazoer
Ajax teenager Riechedly Bazoer, who has previously been linked with the Premier League, emerges as a reported transfer target for Bundesliga outfit Wolfsburg. Read more.

Diego Lopez: 'Mario Balotelli dreams of Real Madrid'
AC Milan goalkeeper Diego Lopez claims that Mario Balotelli, who is currently back on loan at AC Milan from Liverpool, wants to join Real Madrid. Read more.

Report: Celta Vigo target Victor Valdes
A report claims that Celta Vigo will move for Manchester United's out-of-favour goalkeeper Victor Valdes when the winter transfer window opens in January. Read more.

Agent: 'Andrej Kramaric looking to leave Leicester City'
The agent of Andrej Kramaric reveals that the Croatian striker is looking to move to another club when the January window opens. Read more.

Carlos Vela "waiting" on Colorado Rapids move
Real Sociedad striker Carlos Vela is currently "waiting on something happening" with regards to a potential move to Colorado Rapids, according to his agent. Read more.

Newcastle United recall Mike Williamson from Wolverhampton Wanderers loan
Newcastle United recall centre-back Mike Williamson from his loan spell at Wolverhampton Wanderers to provide cover for the injured Jamaal Lascelles. Read more.

Dale Gorman signs new Stevenage deal
Nineteen-year-old midfielder Dale Gorman agrees a new three-year contract with League Two side Stevenage. Read more.