It's that time of year again when Premier League sides are given the chance to open their chequebooks and bring in much-needed reinforcements.
January signings aren't always a hit, though. Many have flopped while others have succeeded, Fernando Torres and Andy Carroll current examples of the former whilst Daniel Sturridge and Philippe Coutinho fall under the latter.
Every Premier League outfit has a position in need of strengthening - here's who they should each pursue.
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Andros Townsend. Villa need a player who has pace going forward and is willing to drive at opponents, whilst Townsend needs playing time in order to re-establish himself. Tottenham would likely demand little for the Englishman, though his wage demands might prove a problem.
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Grzegorz Krychowiak. The Pole has been Sevilla's best player this season and could be the missing piece of the puzzle to Arsenal's Premier League title bid. The Gunners have Francis Coquelin, but amidst the Frenchman's injury Krychowiak would be the perfect remedy, let alone an improvement.
Charlie Austin. With Callum Wilson out for the rest of the season, the Cherries need a consistent goalscorer to steer clear of relegation - and Austin has proved he's capable of doing just that. A move to Bournemouth would be a wise decision for the Englishman given the club's steady rise under Eddie Howe's tutelage.
Alex Teixeira. Buying the Brazilian would likely mean the end for Oscar at Stamford Bridge, who has been inconsistent after a promising first season. Teixeira is a clinical goalscorer who would offer greater pace and physicality than his countryman.
Loic Remy. Alan Pardew reunited with Yohan Cabaye at Crystal Palace and should do the same with the Chelsea forward. Remy would fit right in at a club filled with French-speaking players and his pace and eye for goal would add a considerable threat to the Eagles' attack.
Jese Rodriguez. The out-of-favour Real Madrid winger has often been overlooked under Rafael Benitez and with Kevin Mirallas struggling for form at Goddison Park might be the perfect addition to make. Everton already have one Spanish winger amongst their ranks in Gerard Deulofeu - another could prove just as fruitful.
Hiroshi Kiyotake. The Japanese forward would be a useful rotation option for Marc Albrighton, who has been excellent for the Foxes this season. By pursuing Kiyotake, Ranieri would have the English partnership of Jamie Vardy and Albrighton, and the Japanese pairing of Shinji Okazaki and Kiyotake, at his disposal.
Winston Reid. The New Zealand defender has perhaps been West Ham's best player for a couple of seasons now and deserves a shot at a bigger club. Liverpool have struggled defensively recently and should look towards the experienced Reid to replace the much-maligned Dejan Lovren.
Ezequiel Garay. How many times have we seen the Citizens struggle in the absence of captain Vincent Kompany? Otamendi has performed well but needs a stronger defensive partner than the unreliable likes of Eliaquim Mangala and Martin Demichellis.
Jetro Willems. United have a number of Dutch stars amongst their squad - why not add another? Willems is a decent left-back who could form an understanding with countrymen Daley Blind and Memphis Depay having played alongside the latter at PSV. In Luke Shaw's absence, fans would welcome the sight of defensive reinforcements, even if going forward is the real problem at hand.
Aurelien Chedjou. Chancel Mbemba has been Newcastle's best defender this season yet the Magpies' defence remains frail. Fabricio Coloccini is past his best, which suggests a signing like Chedjou could be just what is needed at St James' Park.
Kieran Trippier. The Tottenham right-back has received little playing time at White Hart Lane and could be available on loan, whilst the Canaries lack a proven right-back. It's a match made in heaven.
The Saints have sufficient quality to achieve their season targets and should instead offload players like Maya Yoshida and Gaston Ramirez, who have barely featured in recent times.
Kieran Trippier (again). The Englishman's signing should be made for one simple reason: Glen Johnson is past his best and needs replacing, fast.
Omar El Kaddouri. The Morocco international has one goal and five assists in five outings in the Europa League but hasn't started a single match for Napoli in Serie A. Playing time is an issue and, alongside Yann M'Vila in centre midfield, could add a creative spark in a side struggling for goals this season.
Wilfried Bony. The Ivorian left for City in January but hasn't lived up to the billing since. Bony will forever struggle for playing time whilst Sergio Aguero is at the club and a return to the Swans could be just what he needs to re-establish himself as one of the Premier League's best strikers. A loan deal might be possible.
No urgent need to strengthen. All positions are covered for and as a result, Tottenham look strong and capable of a title bid. Money spent would be money wasted unless they make an unprecedented sale in January.
Michael Keane. Watford have been flying high since returning to the top flight and the only position they might need to strengthen is at centre-back. Keane is English, has improved greatly at Burnley and could finally be ready for the most challenging league in world football.
Charlie Taylor. The Leeds left-back has been a revelation this season and could be set for the Premier League after consistently delivering the goods for the Championship side. He's even been linked with United as a potential replacement for Shaw, though it's unlikely a deal will transpire, and could be perfect for the Baggies who need to sure up their defence.
Charlie Austin (again). West Ham lack consistent goalscorers and need more home-grown players in their squad. Austin, as mentioned, is a proven goalscorer in the Premier League and would add further depth in Slaven Bilic's squad.