The transfer window is open! Clubs around the UK and Europe have one final chance to strengthen their squads for the second half of the season.

Tuesday morning's headlines:

Arsenal star Alexis Sanchez to complete move to Manchester City this week?
Arsenal star Alexis Sanchez could reportedly move to Manchester City as early as this week. Read more.

West Ham United to secure Jonjo Shelvey from Newcastle United for £12m?
West Ham United are reportedly close to clinching the signature of Jonjo Shelvey from Newcastle United for around £12m. Read more.

PSG 'tell Nantes they can sign Manchester United target Lucas Moura'
Nantes president Waldemar Kita reveals that Paris Saint-Germain have given the club the go-ahead to move for Lucas Moura. Read more.

Leicester City boss Claude Puel: 'Ahmed Musa exit is a possibility'
Leicester City boss Claude Puel admits that Ahmed Musa could be sold this month. Read more.

Stoke City sign Moussa Niakate for Under-23s squad
Stoke City announce the signing of young Frenchman Moussa Niakate, who will join up with the club's Under-23 squad. Read more.

Bristol City, Sheffield United keen to sign Liverpool's Ryan Kent on loan?
Bristol City and Sheffield United are reportedly interested in signing Liverpool winger Ryan Kent on loan. Read more.

Arsenal 'open to offloading Francis Coquelin amid West Ham United interest'
Arsenal will reportedly listen to offers for midfielder Francis Coquelin, who has dropped down the pecking order. Read more.

Monaco coach Leonardo Jardim hints at sale of Liverpool target Thomas Lemar
Monaco head coach Leonardo Jardim hints that players could be sold this month amid reports that Liverpool are interested in Thomas Lemar. Read more.

Jurgen Klopp 'urges Liverpool board to move for Riyad Mahrez'
Liverpool boss Jurgen Klopp has urged his bosses to bring in Riyad Mahrez from Leicester City before the transfer window closes, according to a report. Read more.

Roderick Miranda 'on verge of leaving Wolverhampton Wanderers'
Roderick Miranda is reportedly close to returning to Portuguese football with Braga, six months after joining Wolverhampton Wanderers on a long-term deal. Read more.

Yerry Mina to undergo Barcelona medical this week?
Barcelona will wrap up the signing of Palmeiras centre-back Yerry Mina before the end of the week, according to a report. Read more.

Paris Saint-Germain chief: 'Paulo Dybala not a key target'
Juventus attacker Paulo Dybala is "not the key to Paris Saint-Germain's future", according to the French club's chairman Nasser Al-Khelaifi. Read more.

Sunderland secure Jake Clarke-Salter loan signing
Sunderland bring in England Under-20s defender Jake Clarke-Salter on loan from Chelsea for the remainder of the campaign. Read more.

Real Madrid boss Zinedine Zidane: "I am happy with my squad"
Real Madrid manager Zinedine Zidane insists that he is 'happy with his squad' and does not currently have any plans to strengthen during the January transfer window. Read more.

Watford defender Jose Holebas pens new Vicarage Road contract
Watford full-back Jose Holebas extends his stay at Vicarage Road by a further two-and-a-half years. Read more.

Report: Watford to rival West Ham United for Alfie Mawson
Swansea City defender Alfie Mawson will reportedly be at the centre of a transfer tug-of-war between Premier League rivals West Ham United and Watford. Read more.

Arsenal, Tottenham Hotspur dealt blow in attempts to sign Jannik Vestergaard?
Borussia Monchengladbach sporting director Max Eberl says that the club have no intention of selling defender Jannik Vestergaard. Read more.

Fousseni Diabate: 'Leicester City move is a dream'
Gazelec Ajaccio striker Fousseni Diabate says that signing for Leicester City will be "a dream come true" after completing a medical in the East Midlands. Read more.

Sheffield United keen to loan Manchester United forward James Wilson?
Sheffield United are reportedly keen to secure a loan deal for Manchester United forward James Wilson. Read more.

Arsenal, Manchester City contact West Bromwich Albion over Jonny Evans?
Arsenal and Manchester City reportedly make contact with West Bromwich Albion over the potential signing of defender Jonny Evans. Read more.

Leicester City close to signing Fousseni Diabate from Gazelec Ajaccio?
Leicester City are reportedly close to completing the signing of Gazelec Ajaccio forward Fousseni Diabate. Read more.

Aleix Vidal given permission to leave Barcelona?
Barcelona reportedly tell Aleix Vidal that he is free to find a new club during the January transfer window. Read more.

Arsenal 'quote Manchester City £40m for Alexis Sanchez'
Arsenal have reportedly stated £40m as the asking price for winger Alexis Sanchez as Manchester City step up their efforts to sign the Chilean this month. Read more.

Juventus 'enter Mesut Ozil race'
Juventus have allegedly entered the race to sign Arsenal midfielder Mesut Ozil, and will reportedly do battle with Manchester United for the German's signature. Read more.

RB Leipzig 'to resist January Naby Keita approach from Liverpool'
RB Leipzig are believed to be determined to keep hold of midfielder Naby Keita, despite Liverpool having renewed funds at their disposal. Read more.

Chelsea rule out Ruben Loftus-Cheek sale to Crystal Palace
Chelsea have reportedly ruled out selling midfielder Ruben Loftus-Cheek to Crystal Palace once his loan with the Eagles expires. Read more.

Lucas Moura 'only wants Manchester United move'
Out-of-favour Paris Saint-Germain winger Lucas Moura will reportedly only leave the club to join Manchester United. Read more.

Leon Goretzka told to make decision over future
Schalke 04 tell in-demand midfielder Leon Goretzka to make a decision over his future amid speculation linking him to the likes of Manchester United and Liverpool. Read more.

Antoine Griezmann 'demands £400,000-a-week Manchester United wages'
Atletico Madrid striker Antoine Griezmann reportedly tells Manchester United that it would take wages of £400,000 a week for him to choose them over Barcelona. Read more.

Real Madrid 'tried to hijack Philippe Coutinho deal'
A report claims that Real Madrid were willing to offer Liverpool £177m for Philippe Coutinho in an audacious bid to hijack the deal from bitter rivals Barcelona. Read more.

Philippe Coutinho arrives for Barcelona medical
Brazilian playmaker Philippe Coutinho arrives at a hospital in Barcelona to complete his medical ahead of his £146m move from Liverpool. Read more.