We take a look back at David Sullivan's journey from Cardiff schoolboy to billionaire businessman who has now stepped down as chairman of West Ham with immediate effect

West Ham says joint-chairman David Sullivan has stepped down ahead of what the English soccer club called “historic allegations” to be made against him.

West Ham have confirmed that David Sullivan has stepped down from his role with the Hammers having been made aware of the publication of historic allegations, which he denies

The 77-year-old is leaving his role after 16 years