While he had no desire to be a manager, Liddell, as a shareholder, had wanted to become a Liverpool director; however, his repeated applications to board elections were unsuccessful. He continued to play football for a magistrates' team until he decided to focus on tennis after breaking a cheek bone. In 1967, Liddell and other footballing personalities appeared in a charity match to generate funds for Bankfield House Community Centre. More than 10,000 people watched Liddell play opposite retired Hungarian international Ferenc Puskás at South Liverpool's Holly Park ground, raising £1,100 in the process. He later became chairman of Littlewoods' Spot the Ball panel and president of the Liverpool FC Supporters Club. After being diagnosed with Parkinson's disease in the early 1990s, Liddell resigned from the panel on the insistence of Phyllis. His wife had first noticed atypical behaviour on a visit to Anfield following the Hillsborough disaster in 1989, when he did not appear able to register what had happened in Sheffield. When his condition worsened, Liddell moved to a nursing home in Mossley Hill. He died on 3 July 2001, within a week of the deaths of former Liverpool manager Joe Fagan and director Tom Saunders.