According to transfer expert Romano, Chelsea and Arsenal will exchange all documents on Maduaike's transfer on Friday.
Romano wrote on social media: "More exclusive reports about Maduaike: It is reported that Arsenal and Chelsea will exchange all documents on Friday."
"The transfer fee agreed by the two sides is £52 million, and Arteta had agreed to list Maduaike as the main target a few weeks ago. Arsenal will soon arrange a physical examination for the players."