Because to the departures of Andreas Christensen and Antonio Rudiger, Chelsea is lacking in the defence.
Thomas Tuchel, the manager of Chelsea, has frequently emphasised the need to improve his defence.
Although Kalidou Koulibaly has been acquired by the Blues, a transfer for a different central defender is still being discussed.
Wesley Fofana is a defender for Leicester City, and Chelsea had a £60 million offer for him rejected.
Fofana only recently signed a new deal in March, therefore his transfer value is high.
Football.london claims that Chelsea are willing to pay a defender a record-breaking sum in order to sign Fofana.
The all-time high price paid for a defender is still Harry Maguire’s £80 million transfer from Leicester City to Manchester United.
Brendan Rodgers, the manager of Leicester City, has declared that Fofana is not for sale, but rumours suggest that the Foxes may sell if Chelsea makes a sizable bid.
Brendan Rodgers, the manager of Leicester City, warned Chelsea in his pre-game press conference on Friday that his players were not for sale.
These players are not for sale, according to Rodgers. To us, these players are crucial. We need to get some guys out of the way, but it doesn’t mean we have to get go of everyone, especially not our greatest players.