The Mayor of London has joined the criticism of West Ham and David Moyes for selecting Kurt Zouma for Tuesday's Premier League clash with Watford.
The Hammers ran out 1-0 winners with Zouma performing well in the backline but his inclusion has drawn widespread condemnation from charities, politicians, sponsors and former players alike.
Essex Police had confirmed that "urgent enquiries" are ongoing and Sadiq Khan has called for Zouma to face criminal prosecution for his actions.