Chelsea are expected to confirm the signing of goalkeeper Edouard Mendy from Rennes by the end of the week.
The Blues have already agreed a deal of around £18m for the Senegal international and earlier last week, it was reported that he had arrived in London for his medical.
Transfer expert Fabrizio Romano has now revealed that the formalities for the move have been finalised and an announcement could be made by the Blues in the coming days.
Arrizabalaga experienced a difficult 2019/2020 season with the west London giants and he managed an average save percentage of only 54 over the course of the campaign.
This has contributed to the decision to pursue another shot-stopper. Arrizabalaga has no intention of parting ways with the club despite the anticipated arrival of Mendy.