Chelsea most expensive signings: How Blues splashed over £1 billion on 15 incoming transfers

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Chelsea Mudryk Enzo Fernandez
Chelsea remain unafraid of splashing the cash, despite making some expensive errors

Chelsea's considerable success in the last 20 years or so can be partly attributed to the significant amount of money they have spent in the transfer market. Indeed, the Blues have never had any issue splashing the cash on talented players, especially after Roman Abramovich took control of the club in 2003.

While there have been some notable flops, many new signings played a pivotal role in an unprecedented era of success for the club featuring Premier League triumphs, two Champions League wins and five FA Cup successes.

Abramovich may now be gone but Chelsea's new owners, a consortium fronted by Todd Boehly, have already demonstrated their willingness to continue spending big, as underlined by the signing of Mykhailo Mudryk, who was brought in from Shakhtar Donetsk to fortify their attack in a deal worth around £89 million ($109m). Mudryk's is no longer even the most expensive transfer in the Boehly era, though, as they smashed their transfer record on deadline to make Enzo Fernandez their most expensive signing of all time at £106.8m.

Here, GOAL takes a look at the 15 most expensive signings in the Blues' history…

Chelsea top 15 most expensive transfers

Note: All figures are taken from Transfermarkt unless stated otherwise

  1. Mateo Kovacic | £40.5m | Real Madrid | 2019

    #15 Mateo Kovacic | £40.5m | Real Madrid | 2019

    The Croatian is an integral part of the Chelsea midfield these days. He joined Chelsea from Real Madrid in 2018, initially on a season-long loan.

    Though his first season was nothing to write home about, the Blues decided to sign him permanently under new manager Frank Lampard in 2019. And that decision has been vindicated, with Kovacic a key member of the Chelsea side that won the 2021 Champions League.

  2. Ben Chilwell | £45.2m | Leicester City | 2020
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    #14 Ben Chilwell | £45.2m | Leicester City | 2020

    Having established himself as one of the best left-backs in England, it was not a surprise to see Chelsea spend big on the Leicester City youth product in the summer of 2020.

    He had a great first season at Chelsea, making 42 appearances in all competitions. He played the entire 90 minutes as Chelsea beat Manchester City in the 2021 Champions League final.

    Though a cruciate ligament injury curtailed his 2021-22 season campaign, Chilwell is already back in Thomas Tuchel's starting line-up and will be battling out with new signing Marc Cucurella for a starting spot this term.

  3. Timo Werner | £47.7m | RB Leipzig | 2020
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    #13 Timo Werner | £47.7m | RB Leipzig | 2020

    Signed for big money on the back of a prolific season for RB Leipzig, Timo Werner's move to Chelsea has not gone well, with the Germany international now tipped to return to his former club.

    Werner cut a frustrated figure right from the off, his confidence clearly affected by a succession of glaring misses. He slowly fell out of favour, as Chelsea desperately searched for more dependable attacking outlets.

    In fact, there was a marked decrease in his game-time in the 2021-22 season and has long been linked with a move away from Stamford Bridge.

  4. Raheem Sterling | £50.6m | Manchester City | 2022
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    #12 Raheem Sterling | £50.6m | Manchester City | 2022

    The former Manchester City winger has only just arrived at the Bridge and is expected to add a cutting edge to an attacking unit that struggled for goals a bit last season.

    Despite falling out of favour a tad during the final year of his time at the Etihad, Sterling's quality cannot be questioned.

    He won four titles at City, scoring 131 goals in all competitions, and also played a pivotal role in England's run to the final of Euro 2020.

    Given he's still only 27, Sterling could well prove one of Chelsea's best-ever buys.

  5. Jorginho | £51.3m | Napoli | 2018
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    #11 Jorginho | £51.3m | Napoli | 2018

    Despite being wanted by Pep Guardiola at Man City, Jorginho ended up joining his former Napoli boss, Maurizio Sarri, in West London.

    However, while Chelsea won the Europa League in his first season, the cultured midfielder did not have a great first season, as the team struggled under Sarri.

    Jorginho, however, did start to live up to his billing in the following seasons, under Frank Lampard and then Thomas Tuchel.

    He is a trusted member of the team now, as reliable as his famous 'Hop, skip and jump' penalty technique.

  6. Fernando Torres | £52.7m | Liverpool |2011

    #10 Fernando Torres | £52.7m | Liverpool |2011

    Torres' shock move to Chelsea in January 2011 was one of the biggest transfers in Premier League history. The Spaniard had established himself as one of the most feared strikers in the world during a sensational spell at Liverpool. However, he never looked at home at Stamford Bridge.

    While he failed dismally to replicate his fearsome Anfield form, Torres still managed to score some big goals, most notably on a famous night at Camp Nou in 2012, and ended up winning the Champions League, Europa League and FA Cup at Chelsea.

  7. Christian Pulisic | £57.6m | Borussia Dortmund | 2019

    #9 Christian Pulisic | £57.6m | Borussia Dortmund | 2019

    Pulisic was one of the best young players in Europe when Chelsea snapped him up in January 2019.

    However, the American has blown hot and cold during his three years in the Premier League to date.

    While capable of producing stunning moments on his day, Pulisic has struggled to deliver on a consistent basis, with his cause not helped by incessant injury issues.

    Consequently, despite being Chelsea's youngest hat-trick scorer, the United States international has failed to nail down a spot in the starting XI.

  8. Marc Cucurella | £58.8m | Brighton | 2022

    #8 Marc Cucurella | £58.8m | Brighton | 2022

    A product of La Masia, Cucurella had looked set to join Manchester City but the Premier League champions were unable to agree a fee with Brighton for a player who had excelled during his debut season at the Amex, in 2021-22.

    Chelsea swooped in, picking up a high-quality replacement for the Barcelona-bound Marcos Alonso. The size of the fee has surprised many, though, given the Blues still have Chilwell on their books, even if the England international has only just returned to full fitness after a serious injury.

    It remains to be seen, then, if Cucurella will prove worth such a significant outlay.

  9. Alvaro Morata | £59.4m | Real Madrid | 2017

    #7 Alvaro Morata | £59.4m | Real Madrid | 2017

    When it comes to signing strikers, Chelsea don't have a particularly good record, resulting in talk of 'The curse of the No.9'. Alvaro Morata is one of the most high-profile victims.

    The Spaniard arrived from Real Madrid for big money and with a fine reputation. However, he struggled to adapt to the rigours of the Premier League.

    His profligacy became a massive talking point, too, he ended up leaving the club for Atletico Madrid after an initial loan spell at the Wanda Metropolitano.

    Chelsea did, at least, manage to recoup most of their original outlay on him.

  10. Kepa Arrizabalaga | £72m | Athletic Club | 2018
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    #6 Kepa Arrizabalaga | £72m | Athletic Club | 2018

    When Thibaut Courtois left Chelsea for Real Madrid in 2018, the Blues had no qualms about making Kepa Arrizabalaga the costliest goalkeeper in history.

    Kepa had built up quite the reputation for himself in Bilbao and had even been linked with Madrid six months before arriving in London.

    He started off well in the Premier League but then things started to go wrong. A series of high-profile errors and a public spat with Maurizio Sarri in the 2019 League Cup final, when he refused to be substituted, meant his stock plummeted. He was benched for Willy Caballero for the 2019-20 season.

    Eventually, Chelsea brought in Edouard Mendy while Kepa became the club's second-choice goalkeeper. A quite expensive one at that!

  11. Kai Havertz | £72m | Bayer Leverkusen | 2020
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    #5 Kai Havertz | £72m | Bayer Leverkusen | 2020

    Kai Havertz became Chelsea's most expensive signing at the time when they spent £72m to prise him away from Bayer Leverkusen. The attacking midfielder was one of the most sought-after young talents in the Bundesliga at the time.

    At Chelsea, the German has sporadically shown his quality, though he is yet to blossom completely. He did give Chelsea their most memorable moment in recent times, though, scoring the winner against Manchester City in the 2021 Champions League final, which, incidentally, was his first goal in the competition.

    Still only 23, the technically gifted player has enough time to justify his transfer fee.

  12. Wesley Fofana | £72.4m | Leicester | 2022
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    #4 Wesley Fofana | £72.4m | Leicester | 2022

    Leicester initially refused to sell their star defender, but they eventually budget when Chelsea opened up the cheque book and paid over £70m for the centre-back.

    Fofana's time at Leicester thus came to an abrupt end after just two seasons, with the Frenchman missing a large chunk of his second year at the club due to injury.

    That physical misfortunate clearly didn't stop Chelsea from going all in for the former Saint-Etienne man as they aim to rejuvenate their defence, with Thiago Silva slowly but surely nearing the end of his illustrious career.

    With Fofana still in his early 20s, Chelsea will sure feel they have sorted one of their centre-back positions for the next decade or so!

  13. Mykhailo Mudryk | £89m | Shakhtar Donetsk | 2023

    #3 Mykhailo Mudryk | £89m | Shakhtar Donetsk | 2023

    Chelsea completed the signing of Mykhailo Mudryk from Shakhtar Donetsk on an eight-and-a-half-year deal, for a fee worth £89 million ($109m). This is the second-highest fee they have paid for a player after signing Romelu Lukaku from Inter in 2021.

    The Ukrainian was heavily linked with Arsenal for two transfer windows, only for Chelsea to swoop in at the last moment and secure his signature. He was unveiled at half time during the Blues' 1-0 Premier League win over Crystal Palace in January 2023.

  14. Romelu Lukaku | £101.7m | Inter | 2021
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    #2 Romelu Lukaku | £101.7m | Inter | 2021

    As already mentioned, Chelsea have had rotten luck with signing high-profile strikers and Romelu Lukaku represents just the latest chapter in this sorry story.

    Lukaku, who was first, acquired way back in 2011, had been in stunning form in Serie A with Inter. And Chelsea, desperately seeking a goalscorer to lead their attack, made the Belgian their club-record signing in the summer of 2021.

    However, despite a bright start, Lukaku struggled to adapt to Tuchel's requirements. The goals dried up and Lukaku did not help his cause by publicly stating his desire to go back to Italy.

    After being left out of the squad by Tuchel, Lukaku worked his way back in but never quite convinced. The Belgian did get his wish after all as Chelsea allowed him to re-join Inter on loan for the 2022-23 season.

  15. Enzo Fernandez | £106.8m | Benfica | 2023
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    #1 Enzo Fernandez | £106.8m | Benfica | 2023

    The January 2023 transfer window was a busy one for Chelsea as they brought in numerous high-profile signings, including the aforementioned Mudryk, but they saved the best for last as they smashed their own transfer record on deadline day by bringing in Enzo Fernandez from Benfica.

    The Argentina ace had only joined the Lisbon giants six months previously for a modest fee of roughly £8 million, but his strong start to life at SLB and his impressive performances at the World Cup made him Chelsea's top target to strengthen their midfield.

    An attempt to sign Fernandez early on in the window had proven unsuccessful, but they got their man after all on January 31 as they met his £106.8m release clause.