The 19-year-old was brought to West Ham just over a year ago under the guidance of Gianluca Nani and Gianfranco Zola however he only made four Premier League appearances and four Cup appearances.
Daprela’s departure comes as a something of a surprise; not least because many fans felt he had the potential to become a valuable member of the first-team, especially considering the inconsistent form of current first-team left back Herita Ilunga.