Jurgen Klopp may be a fan of heavy metal but it is the Rolling Stones who have provided the soundtrack to a frustrating transfer window.
'You can't always get what you want,' sang Mick Jagger - and the Liverpool manager admitted as much after a shock defeat to Swansea City rocked Anfield.
Questions have been asked over why the stuttering Merseysiders have so far failed to put their hands into their pockets after a first half of the season that had triggered real hope of a first top flight title since 1990.
For an exasperated Klopp, the reasons are clear.