Jurgen Klopp described them as his 'Ferraris in the garage' - not the regular players but those on stand-by fuelled and fired up for when the occasion demands it.
They are the fringe first-teamers and youngsters who have stepped in when called upon to power Liverpool through what will be a gruelling 63-game pursuit of an unrivalled Quadruple.
On Tuesday night, Klopp made nine changes to his starting line-up from the FA Cup final at the weekend and still saw his team beat Southampton 2-1 to keep their Premier League challenge alive.