“Zappacosta’s on loan for six months, with an automatic renewal until June 2020 if exceptional conditions with relation to Chelsea’s transfer ban don’t arrive. These conditions are a precaution on Chelsea’s part, since they cannot sign any new players.
“He’s an important player and therefore we accepted these precautions which, however, aren’t particularly significant. The player will stay here for a year and prove his worth. After that, considerations will be made in June 2020.”
-Morgan De Sanctis; source: Football Italia