I have been advised on Twitter-X (only, and not by email or any other communication!) that Avanti will be running replacement Bus Services back to London Euston from Manchester Piccadilly Station. They have cancelled the train before as well (due to them not being able to get' a Crew together to run the trains - they rely on the goodwill of Staff to work Overtime at the weekend - what a shit-show of a Company - take the profits but can't provide the Service!). So best get to Piccadilly quick (Before the Chelsea fans) as Buses will be leaving when they are full - also particular buses 'should' run straight to London, as buses may be designated for the particular stops on the way back, so hopefully not more than 4hours Saturday evening... Good Luck London Blues!