Kalidou Koulibaly has completed his move from to Al-Hilal to spark a busy week of departures at Stamford Bridge.
The international joined the Blues from Napoli in a deal worth £33million last summer.
While he made 32 appearances for the club, the centre-half struggled in the with his season brought to a premature end after suffering a hamstring injury in April.
Chelsea will bank a transfer fee of £18million from the Saudi Pro League side, also clearing his £200,000-a-week salary off their .
‘Kalidou Koulibaly has left Chelsea after completing a permanent transfer to Saudi Professional League side Al-Hilal,’ Chelsea said in a statement.
‘We would like to thank Kalidou for his contributions on and off the pitch during his time at Stamford Bridge and wish him well for the next stage of his career.’
in moves that could be made official in the coming days.
Ziyech is set to join Al-Nassr in a £8m deal while Mendy will join Al-Ahli for £16m. N’Golo Kante has already completed his move to Al-Ittihad, joining the Saudi champions on a free transfer.
Kai Havertz meanwhile is on the verge of sealing his move to Arsenal. across the capital.
Mateo Kovacic meanwhile is close to sealing his £30m move to Manchester City while Chelsea hope to tempt Manchester United into increasing their offer for Mason Mount.
The Blues have rejected three offers from Old Trafford, the latest turned away on Friday which was worth £50million plus £5m in add-ons.
The Blues countered with a proposal worth £65m, £58m plus £7m in add-ons, which United are not willing to pay, leaving the move in major doubt.
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