Chelsea are amongst the biggest spenders in the transfer market: not only domestically, but worldwide.
Enzo Fernandez leads the way as the club's most expensive addition of all time, joining Stamford Bridge for a reported €121m fee from Benfica in January 2023.
The switch came off the back of an impressive 2022 World Cup for the Argentine, but the jury is still out on whether the 25-year-old has repaid the nine-figure fee in West London.
After months of back and forth and an attempted hijack from Liverpool, Chelsea agreed a deal to sign €116m from Brighton on 14th August 2023 -- just seven months on from their club-record acquisition of Fernandez.
Seven years after leaving Chelsea for Everton in a deal worth £28m, the six-time top-flight champions re-signed Romelu Lukaku for €113m -- a then club-record fee.
After just a season at Stamford Bridge -- where he caused unrest with comments on manager Thomas Tuchel's style -- he returned to Inter Milan on loan, before making the temporary switch to Roma the season after and eventually leaving the club permanently to join Napoli in 2024.
Read on as we list the top 10 most expensive Chelsea signings in history.
*Fees according to transfermarkt.co.uk