Dementia campaigner Dawn Astle hopes Sir Bobby Charlton's diagnosis will represent a turning point in how professional football treats the issue.
Former Manchester United and England great Charlton is one of five members of the 1966 World Cup-winning team to suffer the condition.
Charlton's diagnosis follows the deaths of his older brother Jack Charlton, in July, and fellow World Cup-winner Nobby Stiles on Friday. Both had also been diagnosed with dementia.
Dementia campaigner Dawn Astle hopes Sir Bobby Charlton's diagnosis will help football
Sir Bobby's wife, Lady Norma Charlton, expressed hope that the knowledge of his diagnosis, reported by the Telegraph, may help others.