Sad news coming from England and Old Trafford. One of the most formidable Manchester United players ever, Denis Law, revealed he has dementia.The 81-year-old announced that he could not sign autographs anymore since he was diagnosed with a combination of Alzheimer’s and vascular dementia.The man known simply as The King at United is one of the club’s Holy Trinity alongside Sir Bobby Charlton and George Best, who are immortalised by a statue outside Old Trafford.The statue of Best, Law and Charlton (©Christopher Furlong/Getty Images)Law becomes the sixth member of the United squad that won the European Cup in 1968 to be diagnosed with the degenerative condition.In November, Charlton’s family confirmed that he has dementia, days after fellow sufferer Nobby Stiles had passed away, and Tony Dunne, Bill Foulkes and David Herd were also diagnosed before their deaths. Law and Herd played in the ’68 European campaign but missed the final through injury.