UK Championship Venue: Barbican Centre, York Dates: Saturday, 25 November – Sunday, 3 December BBC coverage: Watch live on BBC One, BBC Two, BBC Red Button and BBC iPlayer, as well as the BBC Sport website and mobile app A seven-time champion threatening to quit, a repeat of the 2022 final and an in-form 'Juddernaut' will be among the main plot lines as the UK Championship gets under way in York on Saturday. Defending champion Mark Allen is first up against Ding Junhui – the player he beat in last year's final – while two-time winner Mark Williams faces qualifier…