An article on the official website regarding Mr Hassell's death reads:
'Sheffield United is saddened to report the death of former chairman, John Hassell.
Mr Hassell was chairman of the Blades between 1974 and 1981, during which time the South Stand was built at Bramall Lane.
The club intend to include an article about Mr Hassell in the matchday programme against West Bromwich Albion next weekend.
All at Sheffield United would like to pass on condolences to his family and friends.'
RIP John.