West Ham United can confirm that David Moyes, Diop and Cullen have tested positive for COVID-19.
The team's medical team was notified of the news before the team prepared for the League Cup match with Hull City at the London Stadium. Moyes and the two players left the field immediately.
Currently, the three of them have asymptomatic infections and will follow relevant guidelines and protocols. West Ham United extended its best wishes to the three.