Kalidou Koulibaly has left Chelsea after only one season to join Saudi Professional League side Al-Hilal.
Senegal captain Koulibaly moved to England last summer from Napoli on a four-year deal in a transfer reported to be worth £34million.
A number of high-profile names have moved to the Saudi Professional League during the past six months. Karim Benzema has already agreed to join Al-Ittihad after 14 seasons at Real Madrid, following Cristiano Ronaldo who moved to Al Nassr from Manchester United in December.