#5 Chelsea (€592 million)

Chelsea's story is similar to clubs like Manchester City and Paris Saint Germain.
It is now one of the biggest footballing institutions in the world and this is thanks to Russian billionaire Roman Abrahamovic, whose injection of cash was key to their success.
The Londoners have been consistent big spenders in the transfer market and their efforts have paid healthy dividends in terms of silverware. Although, expecting another Champions League title certainly won't be too much to ask from their talented squad.
Their latest high-profile signing Alvaro Morata (€66m) is the club's most expensive signing, with Tiemoue Bakayoko (€40m). Belgian striker Michy Batshuyayi (€39m) commanded a higher fee than the Englishman, but his loan to Borussia Dortmund is the reason why Danny Drinkwater(€37.90m) is the third most expensive player in the squad right now.