Kalidou Koulibaly has sealed his £34million switch to Chelsea - and in the process he has become of the top ten most expensive transfers for players over 30.
The former Napoli defender, 31, will fill in for Antonio Rudiger, who recently moved to Real Madrid last month, looking to help Chelsea challenge Manchester City and Liverpool for the Premier League title next season.
Koulibaly may have entered his 30s but he has shown that Chelsea are willing to pay over the odds for an experienced and quality player to bolster their back line - and a number of Premier League have also been willing to splash the cash on veteran stars in the past too.