West Ham United boss David Moyes and two of the Hammers playing staff have returned positive tests for coronavirus, the club confirmed on Tuesday.
Moyes, Issa Diop and Josh Cullen were preparing for West Ham's Carabao Cup clash on Tuesday against Hull City when news of the results reached them.
The trio were forced to leave London Stadium, with Diop and Cullen replaced in the Hammers first team by Harrison Ashby and Jack Wilshere.
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The east London club subsequently revealed that positive tests for Covid-19 was behind their withdrawals, while confirming that the game would go ahead as planned.