The January transfer window can often cause panic for Premier League managers and owners, as they look to bolster their squads for the remainder of the season. It can lead to overspending on players as clubs try to improve a certain area of their team, but it can also prove to be a good time to do some shrewd business.

With the mid-season window now upon us, each of the 20 clubs in the top-flight will be considering making some moves in the market.

Whether that’s selling or loaning out current squad members in order to raise funds, or looking in the transfer market for reinforcements, it will certainly be busy behind the scenes at every club.

The summer transfer window tends to generate more expenditure from clubs, but January has seen some big-money signings in the past.

Here we take a look at the top 10 most expensive signings to be made by Premier League sides in January.

10. Willian – Anzhi Makhachkala to Chelsea (£30m)

After serious interest from both Liverpool and Tottenham Hotspur, Willian decided to move to Chelsea in January 2013 from Russian club Anzhi Makhachkala for around £30million.

During his seven years at Stamford Bridge, the Brazilian winger managed to win two Premier League titles, an FA Cup, a League Cup and a Europa League trophy before moving to Arsenal in 2020.

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9. Edin Dzeko – Wolfsburg to Manchester City (£31.5m)

Dzeko completed a £31.5m move from Wolfsburg to Manchester City in 2011 and spent five years at the Etihad Stadium.

Signed by Roberto Mancini, the Bosnian striker scored 50 goals in 130 Premier League appearances for the Citizens, and won five major honours during his time in Manchester, before heading to Roma.

8. Andy Carroll – Newcastle to Liverpool (£35m)

Carroll completed the £35m move to Anfield in 2011, when Kenny Dalglish looked to bolster his attacking options following the departure of Fernando Torres to Chelsea.

Things didn’t quite work out for the former England striker at Liverpool, where he scored just six goals in 44 league games for the 19-time champions of England.

7. Juan Mata – Chelsea to Manchester United (£37.1m)

Mata was one of the best playmakers in world football when Manchester United brought him to the club from Premier League rivals Chelsea in 2014.

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The 32-year-old is still at Old Trafford to this day, and has won four major honours since moving to Manchester, whilst also scoring 33 league goals in 186 appearances.

6. Bruno Fernandes – Sporting Lisbon to Manchester United (£46.5m)

Another Manchester United big-money signing in January – this time a lot more recent – with Ole Gunnar Solskjaer bringing Fernandes to the club from Sporting Lisbon in January 2020.

So far during his time with United, the Portugal international has been sensational and has already scored 19 goals in just 31 Premier League appearances.

5. Fernando Torres – Liverpool to Chelsea (£50m)

The aforementioned Carroll signing was prompted by Torres’ £50m move to Chelsea in 2011, as the Blues splashed the cash on their rivals’ main man.

The former Spain striker spent four years in total with the west London club, scoring 20 goals in 110 Premier League appearances and also won three major honours during his time at Stamford Bridge.

4. Pierre-Emerick Aubameyang – Borussia Dortmund to Arsenal (£56m)

Arsenal signed Aubameyang from Borussia Dortmund in 2018, and the Gabon striker took no time to settle in at the Emirates Stadium.

Before switching to the Premier League, the 31-year-old was well renowned as one of the deadliest finishers in European football, and he has proven that with the Gunners – scoring 57 goals in 100 appearances in the English top-flight so far.

3. Aymeric Laporte – Athletic Bilbao to Manchester City (£57.2m)

Manchester City were looking for a centre-back to improve their defence and in Laporte they found that, after signing him from Athletic Bilbao in 2018.

The Frenchman has proven to be a shrewd bit of business by Pep Guardiola, despite the hefty price-tag for a central defender.

2. Christian Pulisic – Borussia Dortmund to Chelsea (£57.5m)

Chelsea completed the signing of the highly-rated Pulisic in January 2019, but as part of the deal, they loaned him back out to Borussia Dortmund for the remainder of the campaign.

The USA winger has been brilliant during his short time with the Blues and has become one of the most feared attacking players in the Premier League.

1. Virgil van Dijk – Southampton to Liverpool (£75m)

Jurgen Klopp and Liverpool were crying out for a dominant centre-back as they looked to turn their promising progress into major honours.

Van Dijk was the man to help with that, and the former Southampton defender has now established himself as one of the best centre-backs in world football during his three years with the Reds, where he has helped with a Champions League and Premier League title.